Related topics: climate change , carbon dioxide , greenhouse gas
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
Wikipedia.
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News tagged with carbon emissions
Acid oceans: the 'evil twin' of climate change
22 hours ago |
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(AP) -- Far from Copenhagen's turbulent climate talks, the sea lions, harbor seals and sea otters reposing along the shoreline and kelp forests of this protected marine area stand to gain from any global ...
Home heating efficiencies offer 'hat trick' of savings: study
Dec 15, 2009 |
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Improving the energy efficiency of Maryland homes heated by natural gas would generate a "hat trick" of economic and environmental benefits over the next 10 years, including more than 80,000 new jobs, savings of hundreds ...
Draft Copenhagen deal targets maximum 2 C warming
Dec 11, 2009 |
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The first official draft blueprint for a deal at the UN climate talks sees targets of limiting global warming to 1.5 or 2.0 degrees Celsius (2.7 or 3.6 degrees Fahrenheit), according to a document seen by ...
China solar panel makers see boost from Copenhagen
Dec 03, 2009 |
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In Trina Solar's brilliant white factory in eastern China, masked workers in lab coats turn silicon wafers into solar power cells capable of harnessing the sun's clean and limitless energy.
The end of deforestation in the Brazilian Amazon?
Dec 03, 2009 |
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A new article in the December 4 issue of Science addresses how the combined efforts of government commitments and market transition could save forest and reduce carbon emissions in Brazil. The Policy Forum brief, entitled "The E ...
New forest fire detection system prototype installed at Lake Tahoe
Dec 07, 2009 |
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Graham Kent, Nevada Seismological Laboratory director at the University of Nevada, Reno is leading the installation, testing and maintenance of a novel way to monitor forests fires and other environmental ...
ORNL, Los Alamos pioneer new approach to assist scientists, farmers
Nov 19, 2009 |
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Sustainable farming, initially adopted to preserve soil quality for future generations, may also play a role in maintaining a healthy climate, according to researchers at the Department of Energy's Oak Ridge and Los Alamos ...
