Greenhouse gas
hideGreenhouse gases are gases in an atmosphere that absorb and emit radiation within the thermal infrared range. This process is the fundamental cause of the greenhouse effect. Common greenhouse gases in the Earth's atmosphere include water vapor, carbon dioxide, methane, nitrous oxide, and ozone. In our solar system, the atmospheres of Venus, Mars and Titan also contain gases that cause greenhouse effects. Greenhouse gases greatly affect the temperature of the Earth; without them, Earth's surface would be on average about 33°C (59°F) colder than at present.
Human activities since the start of the industrial era around 1750 have increased the levels of greenhouse gases in the atmosphere. The 2007 assessment report compiled by the IPCC observed that "changes in atmospheric concentrations of greenhouse gases and aerosols, land cover and solar radiation alter the energy balance of the climate system", and concluded that "increases in anthropogenic greenhouse gas concentrations is very likely to have caused most of the increases in global average temperatures since the mid-20th century".
For more information about Greenhouse gas, read the full article at
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News tagged with greenhouse gas emissions
A greener way to get electricity from natural gas
Dec 03, 2009 |
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(PhysOrg.com) -- A new type of natural-gas electric power plant proposed by MIT researchers could provide electricity with zero carbon dioxide emissions to the atmosphere, at costs comparable to or less than ...
Half of Britons deny climate change man-made: poll
Dec 06, 2009 |
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Almost half of Britons do not believe human behaviour is the main cause of global warming, a new poll showed Sunday, a day before world leaders begin crunch climate talks in Copenhagen.
The last best chance: UN climate conference opens
20 hours ago |
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(AP) -- The largest and most important U.N. climate change conference in history opened Monday, with organizers warning diplomats from 192 nations that this could be the last best chance for a deal to protect ...
List of 'unsung' wildlife affected by climate change released
15 hours ago |
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The Wildlife Conservation Society today released a list of animals facing new impacts by climate change, some in strange and unexpected ways.
ARS Explores Ways to Keep Carbon in the Soil
Dec 03, 2009 |
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(PhysOrg.com) -- Agricultural Research Service (ARS) scientists are testing out alternative ways of tilling the soil and rotating crops to see if they can help wheat farmers in Oregon sequester more carbon ...
