What are the potential long-term consequences of greenhouse effect?
Answers
Most climate scientists agree the main cause of the current global warming trend is human expansion of the "greenhouse effect"1 — warming that results when the atmosphere traps heat radiating from Earth toward space.
Certain gases in the atmosphere block heat from escaping. Long-lived gases that remain semi-permanently in the atmosphere and do not respond physically or chemically to changes in temperature are described as "forcing" climate change. Gases, such as water vapor, which respond physically or chemically to changes in temperature are seen as "feedbacks."
Gases that contribute to the greenhouse effect include:
Water vapor. The most abundant greenhouse gas, but importantly, it acts as a feedback to the climate. Water vapor increases as the Earth's atmosphere warms, but so does the possibility of clouds and precipitation, making these some of the most important feedback mechanisms to the greenhouse effect.
Carbon dioxide (CO2). A minor but very important component of the atmosphere, carbon dioxide is released through natural processes such as respiration and volcano eruptions and through human activities such as deforestation, land use changes, and burning fossil fuels. Humans have increased atmospheric CO2 concentration by more than a third since the Industrial Revolution began. This is the most important long-lived "forcing" of climate change.
Methane. A hydrocarbon gas produced both through natural sources and human activities, including the decomposition of wastes in landfills, agriculture, and especially rice cultivation, as well as ruminant digestion and manure management associated with domestic livestock. On a molecule-for-molecule basis, methane is a far more active greenhouse gas than carbon dioxide, but also one which is much less abundant in the atmosphere.
Nitrous oxide. A powerful greenhouse gas produced by soil cultivation practices, especially the use of commercial and organic fertilizers, fossil fuel combustion, nitric acid production, and biomass burning.
Chlorofluorocarbons (CFCs). Synthetic compounds entirely of industrial origin used in a number of applications, but now largely regulated in production and release to the atmosphere by international agreement for their ability to contribute to destruction of the ozone layer. They are also greenhouse gases.
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Greenhouse Effect➫ The warming effect of the sun on greenhouse gases like Carbon dioxide that act to trap this heat in our atmosphere.
Ex:- Global Warming
♦ It is one of the main factors determining the temperature of a planet.
♦ It act like a blanket by absorbing IR radiation & preventing it from escaping into outer space.
➧ Types 0f Greenhouse Gases are:-
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❱ 0zone
❱ Methane
❱ Nitrous oxide
❱ Carbon dioxide
❱ Chlorofluorocarbons
❱ Hydrofluorocarbons
➧ Causes 0f Greenhouse Effect are:-
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❱ Burning of Fossils Fuel like - Coal.
❱ Trapping of energy in the lower atmosphere.
❱ The chemical composition of the atmosphere.
❱ The total energy influx from the sun which depends on the earth's distance from the sun & on solar activity.
➧ Importance 0f Greenhouse Effect are:-
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❱ It maintain the water level of the earth's surface.
It keeps the Earth warm enough to sustain life.
❱ It prevents the melting of ice & restricts the polar caps to the polar regions only.
➧ Effects 0f Greenhouse Effect are:-
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❱ Skin disease.
❱ Rise in sea level.
❱ Climate Change.
❱ Increase in earth's temperature.
➧ The ways to reduce Greenhouse Effect are:-
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❱ Reduce, Reuse & Recycle.
❱ Use Less Heat & Air Conditioning.
❱ Replace Your Light Bulbs.
❱ Drive Less & Drive Smart.
❱ Buy Energy-Efficient Products.
❱ Use Less Hot Water.
❱ Use the "Off" Switch.
❱ Plant a Tree.
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