SELENE - Light Pollution
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The document discusses light pollution, which refers to excessive, misdirected, or obtrusive artificial light. It identifies the main causes of light pollution as glare, uplight, light trespass, and overlighting. Light pollution wastes energy, pollutes the night sky, and has negative effects on human health, safety, wildlife, and the environment. The document recommends proper shielding of lights, using the minimum amount of light necessary, following curfews, using the right lamp types, and not lighting areas that don't need it as ways to reduce light pollution. Implementing these technical solutions through master plans, zoning laws, and policies can help address light pollution, but lack of education, vested interests, and
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Light pollution
Light pollution refers to excessive and obtrusive artificial light. There are multiple types of light pollution including light trespass, over-illumination, glare, light clutter, and sky glow. Light pollution reduces visibility of stars and can negatively impact human and animal health by increasing headaches, fatigue, stress, and anxiety. Reducing light pollution involves utilizing minimum necessary light intensities, timing lights to turn off when not needed, improving light fixture designs to better direct light where needed, adjusting light types, and reevaluating existing lighting plans. Potential solutions include full-cutoff fixtures that ensure light is directed below the horizontal.
Light pollution
Light pollution, known as photo pollution or luminous pollution, is excessive, misdirected, or obtrusive artificial light. Light pollution is the introduction by humans, directly or indirectly, of artificial light into the environment.
Light Pollution
Light pollution is caused by poorly designed lighting that shines light upward and outward instead of focusing it downward. There are two types of light pollution: light glare, which is unused light shining up and out, and light trespass, which lights up windows and property. Streetlights are a major contributor, accounting for 35-50% of light pollution. Light pollution wastes energy, disrupts ecosystems and human health and psychology, and interferes with astronomy. Solutions include using fully shielded fixtures, turning lights off after hours, and reducing light levels on storefronts and parking lots. Light pollution is one of the most easily addressed types of pollution.
Light pollution ppt.pptx
This document discusses light pollution, which refers to excessive and inappropriate artificial light that negatively impacts the environment. It defines different types of light pollution like sky glow, glare, light trespass, and overlighting. Causes are discussed like lack of shielding, timing controls, and improper fixture selection. Effects are on fauna like disrupting bird and insect behaviors, and on flora by interfering with nocturnal pollination and increasing algal blooms. In conclusion, artificial light at night disrupts natural darkness needed for rest and biological rhythms of both humans and other organisms.
Light pollution:A detailed study on effects of Artificial Lights At Night
Light pollution refers to excessive, misdirected or obtrusive artificial light. It has multiple negative impacts on human health, wildlife, and ecosystems. There are four main types of light pollution: skyglow, glare, light clutter and light trespass. Light pollution disrupts circadian rhythms in humans and animals. It decreases melatonin production and increases health risks. It also decreases reproduction and foraging success in many species. Effective solutions include using full-cut off fixtures, minimizing blue light emissions, creating lighting zones, and automatic light sensors. Proper lighting design can help address this growing environmental problem.
Light pollution
This document discusses light pollution, which is excessive or inappropriate artificial light that harms human health and wildlife. It defines light pollution and describes its causes such as inadequate lighting design and incorrect installation. The consequences of light pollution include wasted energy, air and light pollution, and negative impacts on living beings. Wildlife like birds and sea turtles are especially harmed by light pollution disrupting natural behaviors and attracting animals to light sources where they can get injured or die. Prevention methods aim to direct light downward and use efficient bulbs to reduce impacts.
Light Pollution
Light pollution is excessive and misdirected artificial light that negatively impacts wildlife, human health, and astronomy. It is caused by wasted light that illuminates areas where it is not needed, such as light shining into neighbors' windows or up into the sky. Outdoor lighting is commonly used for safety and security purposes but can be designed and directed better to reduce light pollution effects. Tips for reducing light pollution include using motion sensors, low-wattage bulbs, and proper shielding to direct light only where it is needed.
Light Pollution by sophia perez
Light pollution occurs when excess artificial light illuminates the night sky, making it difficult to see stars and increasing energy waste. It is caused by sources like street lights that emit light upwards and result in air glow over cities. Some ways to reduce light pollution include using light shields to point lights downward more efficiently, using red lights for activities like star gazing, and turning off unnecessary lights.
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Light pollution
Light pollution refers to excessive and obtrusive artificial light. There are multiple types of light pollution including light trespass, over-illumination, glare, light clutter, and sky glow. Light pollution reduces visibility of stars and can negatively impact human and animal health by increasing headaches, fatigue, stress, and anxiety. Reducing light pollution involves utilizing minimum necessary light intensities, timing lights to turn off when not needed, improving light fixture designs to better direct light where needed, adjusting light types, and reevaluating existing lighting plans. Potential solutions include full-cutoff fixtures that ensure light is directed below the horizontal.
Light pollution
Light pollution, known as photo pollution or luminous pollution, is excessive, misdirected, or obtrusive artificial light. Light pollution is the introduction by humans, directly or indirectly, of artificial light into the environment.
Light Pollution
Light pollution is caused by poorly designed lighting that shines light upward and outward instead of focusing it downward. There are two types of light pollution: light glare, which is unused light shining up and out, and light trespass, which lights up windows and property. Streetlights are a major contributor, accounting for 35-50% of light pollution. Light pollution wastes energy, disrupts ecosystems and human health and psychology, and interferes with astronomy. Solutions include using fully shielded fixtures, turning lights off after hours, and reducing light levels on storefronts and parking lots. Light pollution is one of the most easily addressed types of pollution.
Light pollution ppt.pptx
This document discusses light pollution, which refers to excessive and inappropriate artificial light that negatively impacts the environment. It defines different types of light pollution like sky glow, glare, light trespass, and overlighting. Causes are discussed like lack of shielding, timing controls, and improper fixture selection. Effects are on fauna like disrupting bird and insect behaviors, and on flora by interfering with nocturnal pollination and increasing algal blooms. In conclusion, artificial light at night disrupts natural darkness needed for rest and biological rhythms of both humans and other organisms.
Light pollution:A detailed study on effects of Artificial Lights At Night
Light pollution refers to excessive, misdirected or obtrusive artificial light. It has multiple negative impacts on human health, wildlife, and ecosystems. There are four main types of light pollution: skyglow, glare, light clutter and light trespass. Light pollution disrupts circadian rhythms in humans and animals. It decreases melatonin production and increases health risks. It also decreases reproduction and foraging success in many species. Effective solutions include using full-cut off fixtures, minimizing blue light emissions, creating lighting zones, and automatic light sensors. Proper lighting design can help address this growing environmental problem.
Light pollution
This document discusses light pollution, which is excessive or inappropriate artificial light that harms human health and wildlife. It defines light pollution and describes its causes such as inadequate lighting design and incorrect installation. The consequences of light pollution include wasted energy, air and light pollution, and negative impacts on living beings. Wildlife like birds and sea turtles are especially harmed by light pollution disrupting natural behaviors and attracting animals to light sources where they can get injured or die. Prevention methods aim to direct light downward and use efficient bulbs to reduce impacts.
Light Pollution
Light pollution is excessive and misdirected artificial light that negatively impacts wildlife, human health, and astronomy. It is caused by wasted light that illuminates areas where it is not needed, such as light shining into neighbors' windows or up into the sky. Outdoor lighting is commonly used for safety and security purposes but can be designed and directed better to reduce light pollution effects. Tips for reducing light pollution include using motion sensors, low-wattage bulbs, and proper shielding to direct light only where it is needed.
Light Pollution by sophia perez
Light pollution occurs when excess artificial light illuminates the night sky, making it difficult to see stars and increasing energy waste. It is caused by sources like street lights that emit light upwards and result in air glow over cities. Some ways to reduce light pollution include using light shields to point lights downward more efficiently, using red lights for activities like star gazing, and turning off unnecessary lights.
Light pollution
This document discusses light pollution, which refers to the excessive or inappropriate use of outdoor lighting that reduces visibility of stars. It defines three types of light pollution: glare, light trespass, and sky glow. It shows how light pollution has increased over time through comparisons of night skies in locations like Los Angeles from 1908 to 1988. The document also demonstrates how a night sky simulator can be used to see differences in star visibility with no, low, moderate, and high levels of light pollution. Finally, it discusses how light pollution affects energy usage, safety, costs, astronomy, human health and wildlife, and provides some solutions to reduce light pollution.
Light pollution
Excessive artificial light at night can cause light pollution through light scattering in the atmosphere, glare, light trespass onto unintended areas, over-illumination, and skyglow. Light pollution disrupts wildlife behaviors like foraging, navigation, and predator avoidance, leading to increased mortality and decreased populations and body weight. It also negatively impacts humans by reducing vision, disrupting circadian rhythms, and decreasing melatonin production, potentially causing health issues. Additionally, light pollution contributes to energy waste, global warming through fossil fuel emissions, and increased air pollution by reducing atmospheric cleaning. The solution involves using efficient, directed outdoor lighting and educating the public.
Light pollution
What is Light Pollution ?
Types of light pollution
Causes of light pollution
Effects of light pollution
Solution
Light Pollution: Kinds, Consequences, & Solutions
There are 4 types of light pollution: glare, over-illumination, light trespass, and skyglow. Light pollution wastes energy, affects human and animal health, and changes ecosystems. It can harm sea turtles and insects that use moonlight to navigate. Solutions are simple - use shielded lights that direct light downward and only where needed, and turn lights off when not in use.
Light pollution power point presentation
Light pollution is excessive or obtrusive artificial light that has negative impacts. It is most severe in highly populated urban areas. There are several types of light pollution including light trespass, over-illumination, glare, and sky glow. Light pollution disrupts ecosystems and human health, increasing risks like cancer, stress, and sleep deprivation. It also wastes energy and interferes with astronomy. Reduction methods include using minimum light intensities, timers, improved fixtures, and full-cutoff lights to prevent sky glow. Light pollution is a growing global problem.
Light pollution
This document discusses the topic of light pollution. It begins with an introduction that defines light pollution and describes how artificial light at night scatters in the atmosphere, degrading views of the night sky. It then discusses the different types of light pollution including sky glow, glare, light trespass, and overlighting. The causes of light pollution are listed as excessive and unnecessary use of outdoor lighting along with improper lighting fixtures and designs. The effects of light pollution are outlined as negative impacts on human health, disruption to nocturnal wildlife, and effects on flora. The document concludes with recommendations for mitigation of light pollution through improved lighting fixtures and light sources that direct light downward rather than polluting the night sky.
Acid rain
This document discusses acid rain, its causes, effects, and ways to reduce it. It begins by defining acid rain as precipitation containing higher than normal amounts of nitric and sulphuric acids from both natural and man-made sources, primarily the burning of fossil fuels. Approximately 2/3 of sulphur dioxide and 1/4 of nitrogen oxides in the US come from electric power generation burning coal. The document then covers the topics of wet deposition, dry deposition, effects of acid rain, measuring acid rain, reducing acid rain, and restoring damaged environments.
Greenhouse Effect
What is greenhouse effect ?
Is greenhouse effect have a serious impact on human health?
What we have to do to reduce the greenhouse effect ?
This simple presentation helps to understand the basic facts about greenhouse effect.
Greenhouse gases and their effect
This document discusses the composition of the Earth's atmosphere and greenhouse gases. It notes that while nitrogen and oxygen make up most of the atmosphere, trace gases like water vapor, carbon dioxide, methane and nitrous oxide have an outsized influence on climate. These greenhouse gases absorb and emit thermal radiation and warm the atmosphere, comprising what is known as the greenhouse effect. The document also outlines the sources and sinks of various greenhouse gases as well as their impacts on climate change like rising global temperatures and sea levels.
GreenHouse Effect
This document summarizes the greenhouse effect. It defines the natural greenhouse effect as gases in the atmosphere that trap heat, keeping the planet's temperature warm. It then defines the artificial greenhouse effect caused by human activity that enhances the natural effect. The key causes of the greenhouse effect are identified as greenhouse gases, ozone layer depletion, and cloud formation. Some disadvantages discussed are rising sea levels and more extreme weather. The document concludes by stating students have a role to play in solutions.
Atmosphere & surface energy balance
The document discusses concepts related to solar radiation and Earth's energy balance. It begins by describing how the Sun generates energy through nuclear fusion and emits it as electromagnetic waves. It then defines insolation as the amount of solar radiation reaching a given area, noting it varies by location and time. Finally, it explains that Earth's climate is powered by solar energy and achieves radiative equilibrium when the amount of incoming solar energy balances the amount radiated back to space, keeping global temperatures stable.
Light pollution
Light pollution is the excessive and inappropriate use of artificial light. It can have negative environmental impacts such as disrupting animal behaviors and migration patterns, increasing bird collisions with structures, and impacting plant growth. Light pollution wastes energy, increases air and light pollution, and interferes with astronomical observations. Solutions include improving lamp and fixture designs to direct light downward and using minimum lighting levels.
Antarctic ozone hole
The Antarctic ozone hole refers to the seasonal depletion of stratospheric ozone over Antarctica. It was determined that CFCs from refrigerants and aerosols were the main cause by depleting ozone. Less ozone allows more UV radiation to reach the Earth's surface, affecting human health and marine ecosystems. The ozone hole forms due to chemical reactions on polar stratospheric clouds that release reactive radicals to catalytically destroy ozone in the Antarctic vortex. Increased UV radiation threatens phytoplankton and marine food webs in Antarctica, with potential global impacts.
ATMOSPHERIC REFRACTION
Atmospheric refraction causes light and electromagnetic waves to deviate from a straight line as they pass through the atmosphere due to changes in air density with altitude. This refraction is responsible for the twinkling of stars and distortions in the shape of the sun at sunrise and sunset. While stars appear to twinkle due to turbulence in the atmosphere refracting light from different layers, planets do not twinkle significantly because they appear as extended sources of light rather than point sources. Atmospheric refraction also causes the sun to be visible for a few minutes before actual sunrise and after sunset, lengthening the period of daylight.
soil pollution
The document discusses the causes, effects, and prevention of soil pollution. It outlines various sources of soil pollution including use of chemicals in agriculture, urban and industrial waste, mining waste, radioactive waste, and acid rain. Soil pollution adversely impacts soil health, agriculture, and living organisms. It can damage human health and lead to organ damage and disease. Prevention efforts include reducing pesticide use, proper waste disposal, recycling, reforestation, and enacting laws to regulate polluting activities.
Illumination, Lighting
This document discusses various topics related to illumination including the nature of light sources, terms used in illumination, methods of producing light, sources of light, and the importance of illumination for energy savings. It covers the history of illumination and developments in luminous efficacy over time from early light sources like torches to modern LED lights. Key light sources discussed include incandescent, fluorescent, sodium vapor, mercury vapor, halogen, compact fluorescent, and LED lamps. The document also provides details on light basics, the visible spectrum, and definitions of common terms in illumination.
Green House Effect : Global Warming & Climate Change
The document discusses greenhouse gases and their role in global warming. It defines key terms like greenhouse, greenhouse effect, greenhouse gases, and climate change. It explains that greenhouse gases like carbon dioxide, methane and water vapor trap heat in the atmosphere and cause the greenhouse effect, which is responsible for rising global temperatures and climate change. Without some greenhouse effect, the Earth would be too cold to support life, but excess greenhouse gases are warming the planet to dangerous levels.
Geography Project Global Warming
The document discusses the causes and effects of global warming. It explains that increased air pollutants like methane, nitrous oxide, carbon dioxide, and CFCs in the atmosphere are enhancing the greenhouse effect and trapping more heat, causing global temperatures to rise. Some consequences of rising temperatures include more extreme weather events, rising sea levels that could flood coastal areas, and threats to wildlife and ecosystems. Suggested measures to reduce global warming include decreasing emissions of greenhouse gases through actions by individuals, countries, and on a global scale.
Smog slide show
Smog is caused by emissions from vehicles, power plants, and factories which release nitrogen, carbon dioxide, and other pollutants into the air. When sunlight reacts with these exhaust pollutants, it forms photochemical smog. Lack of wind can also cause smog to build up in an area. Breathing smog can damage lungs and cause health issues like asthma attacks or lung cancer. Governments have implemented laws and emissions standards to reduce smog by requiring devices like catalytic converters on cars and scrubbers on factories. These efforts have led to fewer smog-related deaths and less damage to the environment and buildings over time.
Lightning
Lightning is a huge electric spark caused by the accumulation of charges in clouds. In ancient times, people did not understand lightning and thought it was the wrath of the gods. In 1752, Benjamin Franklin showed that lightning and small sparks are the same phenomenon, but it took 2000 years for this realization. The process of transferring charge from a charged object to the earth is called earthing, which protects buildings from electrical shocks. Lightning occurs when negative and positive charges meet in clouds and streaks of bright light and sound are produced. During thunderstorms, it is important to find safe shelter inside a building or vehicle.
Light Pollution: The Dark Side of Outdoor Lights
How Artificial Nighttime Lighting Is Affecting Our Skies, Wildlife, Environment, and Health.
As many homeowners, you are taking steps to reduce your carbon footprint at home. You dutifully recycle glass, metal, paper, and plastic waste each week. You replace all the incandescent light bulbs in your home with energy-efficient compact fluorescent lamps (CFL) or light-emitting diode (LED) bulbs. However, you may be unwittingly contributing to carbon emissions and interfering with delicate ecosystems through light pollution.
Light Pollution And Its Effects On The Night Sky
The document discusses light pollution, its causes, effects, and potential solutions. It defines light pollution as adverse effects from artificial light and lists its main sources as headlights, street lamps, businesses, houses, and neon signs. It is a major issue in cities, suburbs, Europe, Japan, and the US, and has three main types: clutter, glare, and light trespass. Light pollution prevents seeing stars and galaxies as light reflected in the sky overwhelms telescopes. Potential solutions include turning off unnecessary lights, using full-cutoff fixtures, and government programs to regulate lighting and spread awareness.
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Light pollution
This document discusses light pollution, which refers to the excessive or inappropriate use of outdoor lighting that reduces visibility of stars. It defines three types of light pollution: glare, light trespass, and sky glow. It shows how light pollution has increased over time through comparisons of night skies in locations like Los Angeles from 1908 to 1988. The document also demonstrates how a night sky simulator can be used to see differences in star visibility with no, low, moderate, and high levels of light pollution. Finally, it discusses how light pollution affects energy usage, safety, costs, astronomy, human health and wildlife, and provides some solutions to reduce light pollution.
Light pollution
Excessive artificial light at night can cause light pollution through light scattering in the atmosphere, glare, light trespass onto unintended areas, over-illumination, and skyglow. Light pollution disrupts wildlife behaviors like foraging, navigation, and predator avoidance, leading to increased mortality and decreased populations and body weight. It also negatively impacts humans by reducing vision, disrupting circadian rhythms, and decreasing melatonin production, potentially causing health issues. Additionally, light pollution contributes to energy waste, global warming through fossil fuel emissions, and increased air pollution by reducing atmospheric cleaning. The solution involves using efficient, directed outdoor lighting and educating the public.
Light pollution
What is Light Pollution ?
Types of light pollution
Causes of light pollution
Effects of light pollution
Solution
Light Pollution: Kinds, Consequences, & Solutions
There are 4 types of light pollution: glare, over-illumination, light trespass, and skyglow. Light pollution wastes energy, affects human and animal health, and changes ecosystems. It can harm sea turtles and insects that use moonlight to navigate. Solutions are simple - use shielded lights that direct light downward and only where needed, and turn lights off when not in use.
Light pollution power point presentation
Light pollution is excessive or obtrusive artificial light that has negative impacts. It is most severe in highly populated urban areas. There are several types of light pollution including light trespass, over-illumination, glare, and sky glow. Light pollution disrupts ecosystems and human health, increasing risks like cancer, stress, and sleep deprivation. It also wastes energy and interferes with astronomy. Reduction methods include using minimum light intensities, timers, improved fixtures, and full-cutoff lights to prevent sky glow. Light pollution is a growing global problem.
Light pollution
This document discusses the topic of light pollution. It begins with an introduction that defines light pollution and describes how artificial light at night scatters in the atmosphere, degrading views of the night sky. It then discusses the different types of light pollution including sky glow, glare, light trespass, and overlighting. The causes of light pollution are listed as excessive and unnecessary use of outdoor lighting along with improper lighting fixtures and designs. The effects of light pollution are outlined as negative impacts on human health, disruption to nocturnal wildlife, and effects on flora. The document concludes with recommendations for mitigation of light pollution through improved lighting fixtures and light sources that direct light downward rather than polluting the night sky.
Acid rain
This document discusses acid rain, its causes, effects, and ways to reduce it. It begins by defining acid rain as precipitation containing higher than normal amounts of nitric and sulphuric acids from both natural and man-made sources, primarily the burning of fossil fuels. Approximately 2/3 of sulphur dioxide and 1/4 of nitrogen oxides in the US come from electric power generation burning coal. The document then covers the topics of wet deposition, dry deposition, effects of acid rain, measuring acid rain, reducing acid rain, and restoring damaged environments.
Greenhouse Effect
What is greenhouse effect ?
Is greenhouse effect have a serious impact on human health?
What we have to do to reduce the greenhouse effect ?
This simple presentation helps to understand the basic facts about greenhouse effect.
Greenhouse gases and their effect
This document discusses the composition of the Earth's atmosphere and greenhouse gases. It notes that while nitrogen and oxygen make up most of the atmosphere, trace gases like water vapor, carbon dioxide, methane and nitrous oxide have an outsized influence on climate. These greenhouse gases absorb and emit thermal radiation and warm the atmosphere, comprising what is known as the greenhouse effect. The document also outlines the sources and sinks of various greenhouse gases as well as their impacts on climate change like rising global temperatures and sea levels.
GreenHouse Effect
This document summarizes the greenhouse effect. It defines the natural greenhouse effect as gases in the atmosphere that trap heat, keeping the planet's temperature warm. It then defines the artificial greenhouse effect caused by human activity that enhances the natural effect. The key causes of the greenhouse effect are identified as greenhouse gases, ozone layer depletion, and cloud formation. Some disadvantages discussed are rising sea levels and more extreme weather. The document concludes by stating students have a role to play in solutions.
Atmosphere & surface energy balance
The document discusses concepts related to solar radiation and Earth's energy balance. It begins by describing how the Sun generates energy through nuclear fusion and emits it as electromagnetic waves. It then defines insolation as the amount of solar radiation reaching a given area, noting it varies by location and time. Finally, it explains that Earth's climate is powered by solar energy and achieves radiative equilibrium when the amount of incoming solar energy balances the amount radiated back to space, keeping global temperatures stable.
Light pollution
Light pollution is the excessive and inappropriate use of artificial light. It can have negative environmental impacts such as disrupting animal behaviors and migration patterns, increasing bird collisions with structures, and impacting plant growth. Light pollution wastes energy, increases air and light pollution, and interferes with astronomical observations. Solutions include improving lamp and fixture designs to direct light downward and using minimum lighting levels.
Antarctic ozone hole
The Antarctic ozone hole refers to the seasonal depletion of stratospheric ozone over Antarctica. It was determined that CFCs from refrigerants and aerosols were the main cause by depleting ozone. Less ozone allows more UV radiation to reach the Earth's surface, affecting human health and marine ecosystems. The ozone hole forms due to chemical reactions on polar stratospheric clouds that release reactive radicals to catalytically destroy ozone in the Antarctic vortex. Increased UV radiation threatens phytoplankton and marine food webs in Antarctica, with potential global impacts.
ATMOSPHERIC REFRACTION
Atmospheric refraction causes light and electromagnetic waves to deviate from a straight line as they pass through the atmosphere due to changes in air density with altitude. This refraction is responsible for the twinkling of stars and distortions in the shape of the sun at sunrise and sunset. While stars appear to twinkle due to turbulence in the atmosphere refracting light from different layers, planets do not twinkle significantly because they appear as extended sources of light rather than point sources. Atmospheric refraction also causes the sun to be visible for a few minutes before actual sunrise and after sunset, lengthening the period of daylight.
soil pollution
The document discusses the causes, effects, and prevention of soil pollution. It outlines various sources of soil pollution including use of chemicals in agriculture, urban and industrial waste, mining waste, radioactive waste, and acid rain. Soil pollution adversely impacts soil health, agriculture, and living organisms. It can damage human health and lead to organ damage and disease. Prevention efforts include reducing pesticide use, proper waste disposal, recycling, reforestation, and enacting laws to regulate polluting activities.
Illumination, Lighting
This document discusses various topics related to illumination including the nature of light sources, terms used in illumination, methods of producing light, sources of light, and the importance of illumination for energy savings. It covers the history of illumination and developments in luminous efficacy over time from early light sources like torches to modern LED lights. Key light sources discussed include incandescent, fluorescent, sodium vapor, mercury vapor, halogen, compact fluorescent, and LED lamps. The document also provides details on light basics, the visible spectrum, and definitions of common terms in illumination.
Green House Effect : Global Warming & Climate Change
The document discusses greenhouse gases and their role in global warming. It defines key terms like greenhouse, greenhouse effect, greenhouse gases, and climate change. It explains that greenhouse gases like carbon dioxide, methane and water vapor trap heat in the atmosphere and cause the greenhouse effect, which is responsible for rising global temperatures and climate change. Without some greenhouse effect, the Earth would be too cold to support life, but excess greenhouse gases are warming the planet to dangerous levels.
Geography Project Global Warming
The document discusses the causes and effects of global warming. It explains that increased air pollutants like methane, nitrous oxide, carbon dioxide, and CFCs in the atmosphere are enhancing the greenhouse effect and trapping more heat, causing global temperatures to rise. Some consequences of rising temperatures include more extreme weather events, rising sea levels that could flood coastal areas, and threats to wildlife and ecosystems. Suggested measures to reduce global warming include decreasing emissions of greenhouse gases through actions by individuals, countries, and on a global scale.
Smog slide show
Smog is caused by emissions from vehicles, power plants, and factories which release nitrogen, carbon dioxide, and other pollutants into the air. When sunlight reacts with these exhaust pollutants, it forms photochemical smog. Lack of wind can also cause smog to build up in an area. Breathing smog can damage lungs and cause health issues like asthma attacks or lung cancer. Governments have implemented laws and emissions standards to reduce smog by requiring devices like catalytic converters on cars and scrubbers on factories. These efforts have led to fewer smog-related deaths and less damage to the environment and buildings over time.
Lightning
Lightning is a huge electric spark caused by the accumulation of charges in clouds. In ancient times, people did not understand lightning and thought it was the wrath of the gods. In 1752, Benjamin Franklin showed that lightning and small sparks are the same phenomenon, but it took 2000 years for this realization. The process of transferring charge from a charged object to the earth is called earthing, which protects buildings from electrical shocks. Lightning occurs when negative and positive charges meet in clouds and streaks of bright light and sound are produced. During thunderstorms, it is important to find safe shelter inside a building or vehicle.
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Light Pollution: The Dark Side of Outdoor Lights
How Artificial Nighttime Lighting Is Affecting Our Skies, Wildlife, Environment, and Health.
As many homeowners, you are taking steps to reduce your carbon footprint at home. You dutifully recycle glass, metal, paper, and plastic waste each week. You replace all the incandescent light bulbs in your home with energy-efficient compact fluorescent lamps (CFL) or light-emitting diode (LED) bulbs. However, you may be unwittingly contributing to carbon emissions and interfering with delicate ecosystems through light pollution.
Light Pollution And Its Effects On The Night Sky
The document discusses light pollution, its causes, effects, and potential solutions. It defines light pollution as adverse effects from artificial light and lists its main sources as headlights, street lamps, businesses, houses, and neon signs. It is a major issue in cities, suburbs, Europe, Japan, and the US, and has three main types: clutter, glare, and light trespass. Light pollution prevents seeing stars and galaxies as light reflected in the sky overwhelms telescopes. Potential solutions include turning off unnecessary lights, using full-cutoff fixtures, and government programs to regulate lighting and spread awareness.
Light pollution portugal grece
Le but de cette présentation était de sensibiliser les élèves et leurs professeurs sur les effets de la pollution lumineuse sur l'environnement et sur l'observation astronomique.
Light Pollution and LED Lighting
This document summarizes a presentation on light pollution and LED lighting. Some key points:
- Street lighting accounts for a large amount of energy usage and CO2 emissions in Germany and Europe.
- Light pollution is increasing and disrupting ecosystems and human health. It is reducing people's ability to see the night sky.
- LED lighting provides a potential solution as it uses less energy than other lighting types, but it also has downsides if not implemented properly.
- The Harz region of Germany suffers from light pollution and its dark night skies are an important natural and cultural resource that need protection. The establishment of a "Dark Sky" park or reserve was proposed to help address this issue.
Environment light pollution
The document discusses the problem of light pollution from artificial lights and presents some solutions. It defines different types of light pollution like sky glow and glare that can reduce visibility. One solution presented is how a lighting manufacturer redesigned their fixture by moving the light bulb up under an opaque cap, which concealed glare and reduced light pollution while still providing good illumination with less watts. In general, the document advocates for reducing light pollution to preserve natural night skies and nocturnal environments.
The effects of artificial lighting
Artificial light at night has negative impacts on both wildlife and human populations. For wildlife, light pollution disrupts natural cycles and behaviors, impacting up to 30% of vertebrates and 60% of invertebrates that are nocturnal. It can attract insects and increase predation, impacting food chains. For humans, light at night decreases melatonin production and disrupts circadian rhythms, increasing health risks like cancer, metabolic issues, and mental health problems. While some lighting brings benefits, poor design wastes energy and money while worsening light pollution. Dark sky reserves and improved designs aim to mitigate these issues, but light pollution remains a significant environmental stressor.
Air & Noise Pollution
This document discusses air and noise pollution. It identifies major causes of air pollution like factories, vehicles, and wildfires. Air pollution leads to issues like smog, acid rain, and global warming. It also negatively impacts human health, causing respiratory diseases. Noise pollution is unwanted sound that disrupts daily life. Common sources include vehicles, construction, and industrial activity. Noise pollution has auditory, physiological, and psychological health effects on humans and disrupts wildlife behaviors. Solutions proposed to address both issues include using renewable energy, planting trees, improving public awareness, and enforcing regulations.
air pollution
This document discusses various causes and effects of air and water pollution. It provides examples of major air pollutants like smoke from vehicles and industries. Air pollution damages structures like the Taj Mahal by producing acid rain. Water pollution is caused by disposal of sewage and toxic chemicals from towns, cities and industries. The Ganga river is used as a case study of a heavily polluted river due to waste disposal and other human activities. Solutions discussed include use of alternative fuels and treating industrial waste before disposal.
Dark side of light. Reducing light pollution for an eco-friendly society
The negative effects of lighting for the environment, human health and society have increasingly gained attention and various measures to reduce unwanted light have been suggested. This presentation ponders on the concept “light pollution”, presents key results from national-level survey charting public perceptions of light pollution and seeks avenues for eco-friendly solutions.
Deforestation
Deforestation is occurring at alarming rates globally and having significant negative impacts. Logging and expanding agriculture are the primary drivers of deforestation, opening up forests and increasing emissions. Deforestation is destroying habitats and reducing biodiversity as many species only live in forests. It is also disrupting the climate by reducing the forests that act as carbon sinks and releasing stored carbon into the atmosphere through decomposition. Urgent action is needed to reduce deforestation and protect the valuable resources and species in forests.
Noise pollution presentation
Noise pollution occurs when unwanted or excessive sound disrupts normal human or animal activities. The main sources of noise pollution are transportation systems, construction work, and industrial activity. Prolonged exposure to noise pollution can cause hearing loss, cardiovascular effects, sleep disturbances, and stress in humans. It can also damage animal communication and increase the risk of death by interfering with predator/prey detection. Some strategies to reduce noise pollution include planting trees, regular maintenance of vehicles and machines, soundproofing buildings, and imposing regulations on loud speakers.
Water Pollution
The document summarizes various topics related to water pollution including:
- Types of water pollutants such as bacteria, chemicals, and excess heat.
- Sources of water pollution including agriculture, industry, mining, urban and suburban development.
- Effects of pollution on surface water bodies like streams, lakes, rivers and oceans. Groundwater is also impacted by pollution.
- Technological solutions and regulations that have helped reduce water pollution in some areas but it remains a serious problem, especially in developing nations. Prevention is key to protecting water resources.
Water pollution power point
The document discusses water pollution, specifically focusing on the Cuyahoga River fire of 1969. It describes how the river regularly caught fire due to severe pollution from industrial waste from nearby steel mills and businesses. The 1969 fire drew national attention and helped spur the environmental movement and passage of the Clean Water Act of 1972. The document also discusses different types of water pollution, including point source pollution from identifiable sources like factories, and non-point source pollution from diffuse sources like agricultural and urban/suburban runoff.
water pollution.
Water pollution occurs when chemicals, sewage, fertilizers and other harmful substances are discharged into waterways without proper treatment. This contamination can poison drinking water and food sources for animals and humans, disrupt ecosystems, and cause health issues. The major causes of water pollution are household, industrial, and agricultural waste as well as litter and nuclear waste. To prevent further water pollution, individuals should use environmentally-friendly household products, limit pesticide and fertilizer use, avoid littering, and support education to change unsustainable habits that threaten the world's water resources for future generations.
Deforestation Powerpoint[1]
Since the existence of humans, precious trees have been destroyed to provide shelter, food, heat and supplies for economic growth and development. Consistent and an increasing demand for products for human comfort, endangers large forests and the environment. Continuous deforestation is disrupting the natural balance of ecosystems. Populations fail to realize that their daily habits and patterns of energy and paper consumption is damaging in the long-run. As deforestation becomes more and more widespread, little is being done to preserve nature
Deforestation: Causes, Effects and Solutions
A presentation about the state of the world's forests, the main causes behind deforestation, and what we can do about it.
Water Pollution
This document discusses water pollution, including its causes, sources, types, effects, and methods of prevention. It defines water pollution as the contamination of water bodies by human and natural activities. The two main sources are point source pollution from single identifiable sources like factories, and non-point source pollution from multiple diffuse sources like agricultural runoff. Various types of water pollution are described, and effects include harm to aquatic life, disruption of food chains, diseases in humans, and destruction of ecosystems. Prevention methods center around proper waste disposal, reduced chemical usage, and wastewater treatment.
Thermal pollution
Thermal pollution is defined as the addition of excess heat to water that makes it harmful to aquatic life. Thermal pollution is caused by the discharge of heated water or hot waste material into water bodies from various sources like nuclear power plants, industrial effluents, domestic sewage, hydroelectric power plants, and coal fired power plants. The document discusses the impacts of thermal pollution from these sources and some control measures that can be implemented like cooling towers, cooling ponds, spray ponds, and artificial lakes.
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Dark side of light. Reducing light pollution for an eco-friendly society
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Why Do We Tolerate Gp
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The City Sustains ItselfEnvironmental StudiesWe have.docx
The City Sustains Itself
Environmental Studies
We have to care about the natural environment. It impacts our well-being as a species. We cannot exist without:
Air
Water
Land
Each place is composed of a different collection of natural assets, so each place requires a different set of solutions.
There may be resulting best practices though that demonstrate successful approaches.
The Urban Environment
The components of the physical environment are man-made structures and natural features.
The resulting quality of life is a result of interaction between these components.
What are some of Cleveland’s natural assets?
What are they worth to us?
Urban Outdoors
Air pollution is of special significance for cities.
Point sources of urban pollutants:
Motor vehicles
Industrial smokestacks
Landfills
Construction sites
Regulation has been the primary way to address air quality.
The availability of open spaces offers natural filter systems.
U.S. Environmental Protection Agency
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The agency was created to oversee implementation of The Clean Air Act of 1970. The Clean Air Act (CAA) is the comprehensive federal law that regulates air emissions.
This law authorizes EPA to establish National Ambient Air Quality Standards (NAAQS) to protect public health and public welfare and to regulate emissions of hazardous air pollutants.
Urban Indoors
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Lead is found in deteriorating urban infrastructure: water pipes (pre-1978) and paint (pre-1986).
Health risks for lead are particularly acute for children aged 6 and under. Impairs physical and mental development.
Radon is a colorless, odorless radioactive gas which comes from the natural breakdown (radioactive decay) of radium, which is itself a decay product of uranium. Uranium and radium are both common elements in the soil.
Radon is the second leading cause of lung cancer, causing thousands of deaths each year in the United States. It is the leading cause of lung cancer in non-smokers.
Where are concentrations of older homes?
Urban Service Systems
Transportation, waste management, and utilities.
Utilities include:
Electricity,
Natural gas/oil for heating,
Water.
Service systems involve complex technologies that are costly to implement, operate and maintain.
Because of the high cost, maintenance is often deferred until a crisis occurs.
Sustainable
Solution
s
The Future of Energy
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In some cases, pollution created in one place affects another (transfrontier pollution).
Acid rain
Chemical fires
Discharge of pollutants into natural waters
Hole in the ozone.
Global (and local) climate change.
Wicked Problems
Urban environmental problems are “wicked problems”.
A wicked problem is a social or cultural problem that is difficult or i ...
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Environmental
The document discusses various types of pollution and new technologies being developed to address them. It covers water pollution, air pollution, land pollution, light pollution, and noise pollution. For each type of pollution, it provides examples of new technologies such as genetically engineered bacteria that can clean up mercury in water, "Super Trees" that filter the air in Lima, Peru, bacteria that can break down plastic foam, and "smart lights" that use motion sensors to reduce light pollution. In conclusion, it notes that while new technologies aim to address pollution problems, pushing boundaries can also have unintended consequences, so caution is needed.
Unit -3 Presentaion enviornmental aktu.pptx
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Pollution its causes and remedies
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Effective Enforcement of Environmental Regulations
The document outlines the speaker's presentation on effective enforcement of environmental regulations in Ireland. It discusses what needs to be enforced based on EU directives, environmental issues like waste, water and air pollution, and an effective risk-based approach using tools like integrated pollution prevention control and networks. It also summarizes the delivery of enforcement by the Environmental Protection Agency using regional teams and communication to build trust.
Environmental Considerations in Electronic Product Design
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This document discusses different types of pollution including air, water, noise, land, radioactive, and solid waste pollution. For each type of pollution, it describes the introduction, causes, effects, and ways to prevent it. The key causes of pollution discussed are industries, vehicles, domestic fuels, waste, mining, quarrying, sewage, and nuclear power/waste. The main effects on humans include diseases and health issues. Effects on other living things and the environment include damage, contamination, habitat destruction, and ecological imbalance. Prevention methods include using cleaner energy sources, proper waste disposal, limiting pollution at the source, and increasing awareness.
Pollution finale
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This document discusses electronic waste (e-waste) in India, including the problems caused by improper management and recycling of e-waste. It notes that e-waste is one of the fastest growing and most toxic waste streams. Large amounts of e-waste are generated each year in India, much of which is handled by informal recycling sectors that expose workers and the environment to harmful toxins. The document calls for improved government regulation, industry responsibility, and public awareness to address the challenges of e-waste in India.
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SELENE - Light Pollution
- 1. Light Pollution The Costs of Poorly Implemented Outdoor Lighting
- 2. Light Pollution Purpose of Lighting What is Light Pollution? Light Pollution's Effects How to Stop Light Pollution What's Stopping Us?
- 4. Light Pollution What is it?
- 6. Light Pollution is Glare
- 7. Light Pollution is Glare
- 8. Light Pollution is Uplight
- 9. Light Pollution is Uplight
- 10. Light Pollution is Trespass
- 11. Light Pollution is Trespass
- 12. Light Pollution is Overlighting
- 13. Light Pollution is Inefficiency
- 14. Light Pollution Why is it bad?
- 15. Why is Light Pollution Bad? Safety Security Social Waste Pollution Health Effects Ecological Effects
- 24. Light Pollution What can be done?
- 32. Light Pollution What's holding us back?