Sci 10 Lesson 2 May 6 - Human Activity and Climate Change
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The document provides an overview of the key topics covered in a science class, including climate change, global warming, and human impacts. It discusses enhanced greenhouse effect, greenhouse gases, albedo and its relationship to climate. Models are used to study and predict climate change. International cooperation through agreements like the UNFCCC aim to reduce greenhouse gas emissions. Canada could be strongly impacted by climate warming through rising temperatures, loss of permafrost and glaciers. Small actions now can positively impact the climate.
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References:
1. J. C. Zachos, M. Pagani, L. Sloan, E. Thomas, K. Billups, Science 292 (2001) 686-693.
2. G. Kukla, Nature (London) 253, 600 (1975).
3. J. D. Hays, J. Imbrie, N. J. Shackleton, Science 194 (1876) 1121-1132.
4. N. Marsh, H. Swensmark, Space Sci. Rev. 94 (2000) 215-230.
5. T. L. Delworth, V. Ramaswamy, G. L. Stenchikov, Geophys. Res. Lett. 32 (2005) L24709.
6. K. Fuhrer, E. W. Wolf, S. J. Johnsen, J. Geophys. Res. 104(D24) (1999) 31043-31052
7. P. Hut, W. Alvarez, W. P. Elder, T. Hansen, E. G. Kauffman, G. Keller, E. M. Shoemaker & P. R. Weissman, Nature Vol. 329, 10 September, 1987
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Global warming is occurring and causing average temperatures worldwide to increase. The last few decades have been the hottest in over 400 years. As the planet warms, Arctic ice caps and glaciers are melting, sea levels are rising, and extreme weather events are becoming more common. Many signs indicate the climate is changing due to warming temperatures, including bleaching of coral reefs, earlier springs and later falls, and shrinking Arctic sea ice. Unless addressed, global warming will continue to have damaging environmental and economic effects across the globe.
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The greenhouse effect occurs when gases like carbon dioxide and methane trap heat in the atmosphere, warming the planet. According to scientific consensus, human economic activity is enhancing the greenhouse effect and causing climate change by emitting more of these gases. The impacts of climate change include higher average global temperatures, more extreme weather like droughts and hurricanes, rising sea levels from melting ice caps, and disruptions to ecosystems.
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2) Sulfate aerosols from burning fossil fuels once had a cooling effect but regulations have reduced their impact.
3) The urban heat island effect makes cities several degrees warmer than surrounding rural areas due to lack of vegetation and heat-absorbing structures.
4) Thawing permafrost releases methane, a powerful greenhouse gas, which could further accelerate global warming through a feedback loop.
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The document discusses climate change and its causes and effects. It notes that climate change is caused both by natural factors like volcanic eruptions but humans are a significant driver through activities like carbon emissions from industry, transportation, and pollution. Some of the impacts of climate change include warmer temperatures, melting glaciers leading to rising sea levels, changes in species ranges, more extreme weather events, coastal flooding, and reduced food production impacting malnutrition. While some countries may see economic benefits from a warmer climate, overall climate change poses serious global risks. Collective action through changes like using public transportation, renewable energy, and diet can help address it.
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References:
1. J. C. Zachos, M. Pagani, L. Sloan, E. Thomas, K. Billups, Science 292 (2001) 686-693.
2. G. Kukla, Nature (London) 253, 600 (1975).
3. J. D. Hays, J. Imbrie, N. J. Shackleton, Science 194 (1876) 1121-1132.
4. N. Marsh, H. Swensmark, Space Sci. Rev. 94 (2000) 215-230.
5. T. L. Delworth, V. Ramaswamy, G. L. Stenchikov, Geophys. Res. Lett. 32 (2005) L24709.
6. K. Fuhrer, E. W. Wolf, S. J. Johnsen, J. Geophys. Res. 104(D24) (1999) 31043-31052
7. P. Hut, W. Alvarez, W. P. Elder, T. Hansen, E. G. Kauffman, G. Keller, E. M. Shoemaker & P. R. Weissman, Nature Vol. 329, 10 September, 1987
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The document discusses the Earth's climate system and factors that can cause climate change. It defines climate as the long-term atmospheric conditions of an area, whereas weather refers to short-term conditions. Climate change occurs when factors like greenhouse gases, solar variability, volcanic eruptions, and human activities disrupt the global energy balance. The climate system includes interactions between the atmosphere, oceans, ice sheets, and land that influence heat distribution.
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This document discusses various natural and human factors that can influence climate change. It describes several natural processes such as volcanic eruptions, ocean circulation patterns, solar activity, and Earth's orbital and rotational changes that have short or long-term effects on climate. It also explains how human activities like burning fossil fuels and deforestation have increased greenhouse gases in the atmosphere and led to issues like global warming and ocean acidification. The document provides examples and diagrams to illustrate these concepts and their impacts on climate.
Climate Change and its Impact on Health
The document discusses how climate change can impact health in several ways. It notes that climate change is causing rising global temperatures, changes in precipitation patterns, and more extreme weather events. These climate changes are increasing heat waves, flooding, droughts, and raising sea levels, which impact health by exacerbating malnutrition, diseases like malaria and diarrhea, and deaths from extreme weather. Vulnerable groups like the elderly, young, and sick are most at risk.
Climate change
Congress accepts the scientific findings that climate change is occurring due to increases in global temperatures, melting ice and snow, and rising sea levels. Climate change refers to lasting changes in weather patterns over decades or longer. While some areas have experienced cooler weather, data from NASA and NOAA show the Earth has warmed 1.2-1.4°F over the past century, with the eight warmest years on record occurring since 1998. Most of the recent warming is very likely due to human activities like increased greenhouse gas emissions.
Global warming: Causes and Consequences
Global warming is defined as the increase in average surface temperatures due to rising greenhouse gas emissions. The main greenhouse gases are carbon dioxide, methane, and nitrous oxide. Global warming occurs due to the greenhouse effect, where greenhouse gases trap heat in the atmosphere. The main sources of greenhouse gas emissions are electricity production, transportation, industry, agriculture, and deforestation. Consequences of global warming include more extreme weather, rising sea levels, wildfires, extinction of species, spread of diseases, and food shortages.
Powerpoint.
Global warming is occurring and causing average temperatures worldwide to increase. The last few decades have been the hottest in over 400 years. As the planet warms, Arctic ice caps and glaciers are melting, sea levels are rising, and extreme weather events are becoming more common. Many signs indicate the climate is changing due to warming temperatures, including bleaching of coral reefs, earlier springs and later falls, and shrinking Arctic sea ice. Unless addressed, global warming will continue to have damaging environmental and economic effects across the globe.
Long term & short term effects of climate
This document discusses both long-term and short-term causes of climate change. Long-term causes occurring over millions of years include continental drift, changes in Earth's orbit and tilt, which affect ocean currents and temperatures. Short-term causes operating over decades to thousands of years include volcanic eruptions, which eject particles that block sunlight, and shifts in ocean and air currents driven by wind and temperature changes. Together, these natural factors have triggered shifts between ice ages and warmer periods throughout Earth's history.
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The greenhouse effect occurs when gases like carbon dioxide and methane trap heat in the atmosphere, warming the planet. According to scientific consensus, human economic activity is enhancing the greenhouse effect and causing climate change by emitting more of these gases. The impacts of climate change include higher average global temperatures, more extreme weather like droughts and hurricanes, rising sea levels from melting ice caps, and disruptions to ecosystems.
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The document discusses several factors that influence global temperature change:
1) Increased greenhouse gas emissions like carbon dioxide trap heat and have warmed the planet about 1 degree Celsius over the past century.
2) Sulfate aerosols from burning fossil fuels once had a cooling effect but regulations have reduced their impact.
3) The urban heat island effect makes cities several degrees warmer than surrounding rural areas due to lack of vegetation and heat-absorbing structures.
4) Thawing permafrost releases methane, a powerful greenhouse gas, which could further accelerate global warming through a feedback loop.
Climate change101 esip_2011
The document provides information about climate change and global warming. It defines key terms like weather, climate and greenhouse gases. It discusses the evidence that climate change is caused by human activities like burning fossil fuels and releasing greenhouse gases. It also notes some of the observed impacts of climate change, such as rising temperatures, sea level rise, and more extreme weather events. Finally, it discusses some actions that can be taken to mitigate and adapt to climate change.
Sri lanka - Why should we be worried
The document discusses several key points about global warming:
1) Global warming is caused by increased greenhouse gases trapping heat in the atmosphere like glass in a greenhouse. This has led to rising global temperatures and impacts that are already being felt.
2) Impacts of global warming include melting ice caps and glaciers, rising sea levels, changes in weather patterns, and effects on plants and animals like coral bleaching and penguin population declines.
3) Individuals can help address global warming by calculating their carbon footprint, reducing energy use, supporting renewable energy and policies that encourage energy efficiency and carbon neutrality. Reducing greenhouse gases is important to mitigate further global temperature increases and impacts of climate change.
Global climate change and us environmental law power point presentation fi...
This document outlines a presentation on global climate change and US environmental law. It discusses the effects of climate change like rising sea levels and more extreme weather. It then explains the causes, like increasing greenhouse gas emissions from human activities like burning fossil fuels. Major sources of emissions are identified as China, the US, and the EU. The cumulative nature of carbon dioxide in the atmosphere is also summarized.
Global climate change and us environmental law power point presentation fi...
This presentation summarizes what we know about climate change, how to regulate greenhouse gas emissions, and how the US is addressing the issues.
Global Warming P P T [97 03]
Global warming is caused by an increase in greenhouse gases like carbon dioxide that trap heat in the atmosphere and cause Earth's surface temperature to rise. Humans contribute to global warming through burning fossil fuels and other activities that release these gases. As the planet warms, sea levels rise and extreme weather increases, endangering many species and coastal regions. International agreements aim to reduce emissions but countries like the U.S. have not fully committed to binding emissions targets. Small individual actions can help lower carbon footprints and mitigate the effects of climate change.
greenhouseeffect-141116104338-conversion-gate02 (1).pdf
The document discusses the greenhouse effect and global warming. It explains that increased concentrations of carbon dioxide and other greenhouse gases in the atmosphere trap heat near the Earth's surface, causing the planet to warm. Carbon dioxide levels have risen from 275 parts per million 100 years ago to 375 parts per million in 2007 and are projected to reach 450 parts per million by 2040. The major sources of greenhouse gases are fossil fuel combustion, agriculture, deforestation, and industry. The effects of global warming include rising sea levels, worsening health impacts, and disruption of natural systems.
Green house effect
The document discusses the greenhouse effect and global warming. It explains that increased concentrations of carbon dioxide and other greenhouse gases in the atmosphere trap heat near the Earth's surface, causing the planet to warm. Carbon dioxide levels have risen from 275 parts per million 100 years ago to 375 parts per million in 2007 and are projected to reach 450 parts per million by 2040. The major sources of greenhouse gases are fossil fuel combustion, agriculture, deforestation, and industry. The effects of global warming include rising sea levels, worsening health impacts, and disruption of natural systems.
Sci 10 Lesson 1 May 4 - Natural Causes of Climate Change
The document provides an overview of natural factors that influence climate change, including the composition of the atmosphere, the water cycle, ocean currents, the carbon cycle, and catastrophic events. It also assigns homework for students to complete questions from the chapter and informs them of upcoming due dates for a field trip form and payment.
Climate change
a change in global or regional climate patterns, in particular a change apparent from the mid to late 20th century onwards and attributed largely to the increased levels of atmospheric carbon dioxide produced by the use of fossil fuels.
Climate change
a change in global or regional climate patterns, in particular a change apparent from the mid to late 20th century onwards and attributed largely to the increased levels of atmospheric carbon dioxide produced by the use of fossil fuels.
Beckeredits chapter13climatechange
1) The document discusses the evidence and impacts of climate change, including rising global temperatures, extreme weather events, and effects on ecosystems and human health and society.
2) Key drivers of climate change identified are greenhouse gas emissions from burning fossil fuels and deforestation which increase atmospheric CO2 and global temperatures.
3) Impacts of climate change discussed include melting ice sheets and glaciers, rising sea levels, ocean warming and acidification, and threats to food production and biodiversity.
2AM SEMINAR WORK
The document discusses greenhouse gases and their effect on the environment. It defines greenhouse gases as gases that trap heat in the atmosphere and contribute to global warming. The main greenhouse gases are water vapor, carbon dioxide, and methane. The document discusses how human activities like burning fossil fuels and deforestation have greatly increased greenhouse gas levels since the Industrial Revolution. This intensified greenhouse effect has led to consequences like rising global temperatures, changes in weather patterns, and sea level rise. The document also examines potential solutions to mitigate the greenhouse effect through sectors like industry, transportation, renewable energy, and forestry.
Global warning and climate change
“The warning about global warming have been extremely clear for a long time. We are facing a global climate crisis.”
-AI Gore
Lesson 1 Introduction
This is the introduction to the course 'Climate Change and Global Environment' conducted at the Faculty of Social Sciences and Humanities, Rajarata University of Sri Lanka
PaigeWhitfield_GEOG3700_ResearchPaper(Final)
The warming of the polar regions due to climate change is affecting air quality globally. As temperatures in places like Greenland and the Arctic rise, pollutants are able to travel farther in the atmosphere. The melting of Arctic ice and permafrost is releasing stored carbon that further warms the climate in a feedback loop. Changes in atmospheric circulation patterns may allow more pollution from the US to reach Europe as high pressure systems shift. Improving energy sources to reduce fossil fuel use could help address some of these impacts.
Global warming
This document discusses global warming and its causes and effects. It defines global warming as a long-term rise in Earth's temperatures due to increased greenhouse gases from human activity since the Industrial Revolution. Greenhouse gases like carbon dioxide trap heat in the lower atmosphere, causing temperatures to be about 33°C warmer than they would be otherwise. Aerosols from volcanoes and pollution can have a cooling effect by reflecting sunlight, but models show they cannot account for current warming. Effects of global warming include sea level rise, extreme weather, ecosystem changes, and ocean acidification. While impacts are already occurring, the document argues renewable energy can provide most energy needs and avoid the worst effects of climate change if adopted more widely.
S.Sepehri D (3)
This document discusses global warming and its causes and impacts. It explains that global warming is caused by human activities like burning fossil fuels which release carbon dioxide into the atmosphere. Burning coal and driving cars are two major sources of carbon dioxide emissions. If left unaddressed, global warming will lead to more extreme weather, rising sea levels, and other serious consequences. International cooperation is needed to implement policies that reduce greenhouse gas emissions and mitigate the effects of climate change.
Sepehri D (3)
This document discusses global warming and its causes and impacts. It explains that global warming is caused by human activities like burning fossil fuels which release carbon dioxide into the atmosphere. This traps heat and is causing the average temperature of the Earth to increase. The impacts of global warming include more extreme weather, rising sea levels, and warmer temperatures that affect ecosystems. It also discusses potential solutions like reducing carbon emissions and transitioning to renewable energy.
Climate change ppt 1 - By Marina Kaitalidou
This document contains a presentation on climate change given in Narvik, Norway. It discusses the shrinking of the Upsala glacier in Patagonia-Argentina over time. It then covers the natural and human causes of climate change, including the greenhouse effect and how excess fossil fuel use has increased greenhouse gases. Key indicators of climate change are outlined as well as the impacts of a warming planet like extreme weather. Solutions proposed include reducing emissions through choices like using renewable energy and recycling. The importance of individual and collective action is stressed.
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Sci 10 Lesson 1 May 4 - Natural Causes of Climate Change
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