Global warming and green house effect
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This document discusses global warming and its causes. The main points are: 1) The troposphere traps heat from certain gases, causing the greenhouse effect. The major greenhouse gases are carbon dioxide, methane, nitrous oxide, chlorofluorocarbons, and water vapor. 2) Human activities like burning fossil fuels and deforestation have increased the concentration of greenhouse gases in the atmosphere, enhancing the greenhouse effect and raising global temperatures. 3) Carbon dioxide contributes most to increased warming, and industrial countries produce the majority of carbon dioxide emissions from fossil fuel combustion and deforestation.
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Greenhouse gases like carbon dioxide, methane, and chlorofluorocarbons trap heat in the atmosphere, causing global warming. While a natural greenhouse effect keeps the Earth habitable, human activities like burning fossil fuels have enhanced this effect. Rising global temperatures lead to sea level rise, worsening natural disasters, and threats to food production. International agreements like the Montreal Protocol and Kyoto Protocol aim to limit greenhouse gases and mitigate climate change.
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Designed and Created by;
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global warming and greenhouse effect
this is a ppt bout'global warming and greenhouse effect u can learn many thing from this ppt so grow more trees use paper bags be sustainable share this with everyone and comment below bout'this ppt.thank you
Global warming and Green house effect
The document discusses several topics related to greenhouse gases and global warming:
1) It explains what the greenhouse effect and global warming are, how greenhouse gases like carbon dioxide trap heat in the atmosphere and cause the planet to warm up over time.
2) It then covers the causes of global warming like greenhouse gas emissions from burning fossil fuels, deforestation, and industrial pollution, as well as consequences like climate change, rising sea levels, and endangered species.
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The document discusses the greenhouse effect, including:
1) Its history, dating back to 1896 when Swedish scientist Svante Arrhenius first proposed that increased CO2 emissions from burning fossil fuels could cause global warming.
2) The main causes of the greenhouse effect are emissions of gases like CO2, methane, nitrous oxide, and ozone from activities like deforestation, burning fossil fuels, industry, and transportation.
3) The consequences of the greenhouse effect include rising sea levels, climate changes worldwide, and increased health issues. Ways to reduce the effect include using less energy, planting trees, and reducing emissions.
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This document discusses the effects of global warming on agriculture production and adaptation strategies. It begins with an introduction to global warming, greenhouse gases, and the causes of global warming from both natural and human factors. It then examines the impacts of rising temperatures on crop yields for various crops in India. The document outlines some adaptation and mitigation strategies farmers can adopt, such as using drought-resistant crop varieties, conservation tillage practices, and crop diversification. It concludes that global warming poses risks to Indian agriculture but that proactive adaptation can help minimize negative impacts.
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Jayant's presentation discusses the causes and effects of global warming. It explains that global warming is caused by greenhouse gases like carbon dioxide and methane that are released through the burning of fossil fuels and deforestation. This traps heat in the atmosphere and causes temperatures to rise. Some effects of global warming include rising sea levels as glaciers melt, more extreme weather like droughts and floods, and impacts on biodiversity as species struggle to adapt. The presentation provides suggestions for preventing further global warming such as using energy more efficiently, planting trees, and reducing greenhouse gas emissions.
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Global warming and green house effect
- 1. By Dr.A.Lovelin Jerald Associate Professor Department of Food Processing and Preservation Technology Faculty of Engineering Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore
- 2. GLOBAL WARMING Troposphere the lowermost layer of the atmosphere , traps heat by a natural process due to the presence of certain gases. This effect is called greenhouse effect . The amount of heat trapped in the atmosphere depends mostly on the concentration of “heat trapping or greenhouse “ gases.
- 3. MAJOR GREEN HOUSE GASES Carbon dioxide Methane Nitrous oxide Chlorofluorocarbon Water vapour
- 4. The average global temperature is 15 c In the absence of greenhouse gasses this temperature would have been -18 c Greenhouse effect contributes a temperature rise to the 33 c The two predominant greenhouse gases are water vapours which are control by hydrological cycle
- 5. Greenhouse gases The phenomenon that worries the environmental scientist is that due to anthropogenic activites there is an increase the concentration of the greenhouse gases in the air that absorb infra-red light containing heat & result in the radiation of even more of the outgoing thermal infrared energy there by increasing the average surface temperature 15 c
- 6. CARBON DIOXIDE It contributes about 55% to global warming from greenhouse gases produced by human activity Industrial countries account for about 76% of annual emissions The main source of fossil fuel burning & deforestation
- 7. Chlorofluorocarbon These are believed to be responsible for 24 % of the human contribution to greenhouse gases The main source of CFCs include leaking air conditioners & refrigerators evaporation of industrial solvent production of plastic foams aerosols, propellants
- 8. METHANE It account for 18 %of the increased greenhouse gases Methane is produced when bacteria break down dead organic matter in the moist places that lack oxygen such as swamps , natural wet land , paddy field , landfills. Atmospheric concentration of methane is 1.675ppm &it is increase at a rate of 1 %annually .
- 9. NITROUS OXIDE It is responsible for 6 % of the human input of greenhouse effect . Besides trapping heat in the troposphere it deplets ozone in stratosphere . It is released from nylon products ,from burning of biomass & nitrogen fertilizers . The atmospheric concentration of nitrous oxide is 0.3 ppm
- 10. IMPACTS OF ENHANCED GREENHOUSE EFFECT Global temperature increase Rise in sea level Effects of human health Effects of agriculture
- 11. MEASURES TO CHECK GLOBAL WARMING use energy more efficiently Shift to renewable energy resources Plant more trees Shift from coal to natural gas Stabilize population growth
- 12. Effects of acid rain it damage metals & car finishes It damage foliage & weaken trees Aquatic life especially fish are badly affected by acidification
- 13. CONTROL OF ACID RAIN Emission of so2 & no2 from industries & power plant should be reduced by using pollution control equipment Liming of lakes & soil should be done to correct the adverse effects of acid rain . A coating of protective layer of inert polymer should be given in the interior of water pipes for drinking water.
- 14. Thank You