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
Path to good health, less pollution is the sidewalk: report
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US pressure groups joined forces Monday to urge authorities to spend more to improve Americans' health and cut greenhouse gas emissions.
Scientists seek safe carbon dioxide storage for 'greener' power generation (w/ Video)
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The U.S. Department of Energy (DOE) has announced plans to fund research at the University of Alabama at Birmingham (UAB) School of Engineering on technologies that would help reduce greenhouse gas emissions through the capture ...
Japan aims to bury greenhouse gas emissions
Nov 01, 2009 |
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Swathes of dirty clouds brood over a coal plant in rural Japan, but scientists are now hoping to send the pollutants the other way, deep into the bowels of Mother Earth.
North America automobile sector bottom of 'world sustainability league'
Oct 30, 2009 |
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North American car manufacturers have come bottom of the league in the largest ever international study of the global automobile sector's sustainability performance.
Obama team: US needs bill to lead in clean energy
Oct 28, 2009 |
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(AP) -- The Obama administration warned on Tuesday that the U.S. could slip further behind China and other countries in clean energy development if Congress fails to pass climate legislation, as early signs ...
Simple measures can yield big greenhouse gas cuts, scientists say
Oct 26, 2009 |
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New technologies and policies that save energy, remove atmospheric carbon and limit greenhouse gas emissions are needed to fight global climate change - but face daunting technological, economic and political hurdles, a Michigan ...
Nuclear energy becomes pivotal in climate debate
Oct 25, 2009 |
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(AP) -- Nuclear energy, once vilified by environmentalists and facing a dim future, has become a pivotal bargaining chip as Senate Democrats hunt for Republican votes to pass climate legislation.
New study predicts future consequences of a global biofuels program
Oct 22, 2009 |
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A report examining the impact of a global biofuels program on greenhouse gas emissions during the 21st century has found that carbon loss stemming from the displacement of food crops and pastures for biofuels ...
India, China agree to cooperate on climate change
Oct 21, 2009 |
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(AP) -- India and China, both major polluters and crucial players in fighting global warming, agreed Wednesday to stand together on climate change issues at a major global conference later this year.
UM Professor: Consumers 'key part of solution' to global warming
Oct 16, 2009 |
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(PhysOrg.com) -- Consumers can have a major impact on the world’s efforts to reduce global warming, a major report has concluded.
Japanese firm plans zero-emission ferry
Oct 15, 2009 |
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A Japanese shipmaker said Thursday it planned to launch the world's first large electric ferry -- the latest innovation aimed at reducing greenhouse gas emissions.
Color-changing roof tiles absorb heat in winter, reflect it in summer
Oct 08, 2009 |
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(PhysOrg.com) -- Anyone who has ever stepped barefoot onto blacktop pavement on a hot sunny day knows the phenomenon very well: Black surfaces absorb the sun's heat very efficiently, producing a toe-scorching ...
EPA moves to regulate smokestack greenhouse gases
Oct 01, 2009 |
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(AP) -- Proposed regulations would require power plants, factories and refineries to reduce greenhouse gases by installing the best available technology and improving energy efficiency whenever a facility ...
Got gas? Study to determine cows' greenhouse gas emissions
Sep 29, 2009 |
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(PhysOrg.com) -- Any calculation of the carbon footprint of a gallon of milk needs to include fuel used by tractors and trucks, as well as electricity consumed by milking machines and refrigerators. But how much gas is coming ...
What could 4 degree warming mean for the world?
Sep 28, 2009 |
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(PhysOrg.com) -- A leading climate scientist has presented new research findings on the increasing potential for a 4 degrees Celsius rise in global temperatures if the current high emissions of greenhouse ...
