Related topics: climate change , greenhouse gas , global warming , carbon dioxide , barack obama
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 greenhouse gas emissions
Obama unveils new biofuels, carbon capture, initiatives
Feb 03, 2010 |
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US President Barack Obama on Wednesday unveiled a new strategy to reinvigorate US production of biofuels, vowing he would not let nations like China race ahead in building new energy economies.
Peering inside an artificial sun
Jan 29, 2010 |
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(PhysOrg.com) -- After more than five decades of research, a major milestone toward the harnessing of fusion power is expected within the next year or two. This milestone, known as "fusion ignition," should ...
Fermenting fodder into fuel
Jan 28, 2010 |
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(PhysOrg.com) -- As climate change challenges continue to crop up around fossil fuel use and greenhouse gas emissions such as carbon dioxide, identifying renewable fuel materials and developing processes that ...
Climate change experts argue for international geoengineering effort
Jan 27, 2010 |
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Internationally coordinated research and field-testing on 'geoengineering' the planet's atmosphere to limit risk of climate change should begin soon along with building international governance of the technology, say scientists ...
Power from down under
Jan 26, 2010 |
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Grants recently awarded to MIT researchers by the U.S. Department of Energy (DoE) could help to pave the way for a method of generating electricity that produces no greenhouse gas emissions, and that could ...
Can the Eastern U.S. get a fifth of its power from wind by 2024?
Jan 21, 2010 |
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Major upgrades to the transmission infrastructure and a sizable chunk of cash from private investors and the government are necessary for the Midwest and East Coast to move to 20 percent wind power by 2024, according to a ...
Urban 'green' spaces may contribute to global warming, study finds
Jan 19, 2010 |
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Dispelling the notion that urban "green" spaces help counteract greenhouse gas emissions, new research has found - in Southern California at least - that total emissions would be lower if lawns did not exist.
New research sheds light on Earth's coldest temperatures
Space & Earth / Earth Sciences
Jan 12, 2010 |
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(PhysOrg.com) -- Results from the first detailed analysis of the lowest ever temperature recorded on the Earth's surface can explain why it got so cold and how cold it could possibly get.
Climate conditions in 2050 crucial to avoid harmful impacts in 2100
Space & Earth / Earth Sciences
Jan 11, 2010 |
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While governments around the world continue to explore strategies for reducing greenhouse gas emissions, a new study suggests policymakers should focus on what needs to be achieved in the next 40 years in ...
The Asia-Pacific Partnership and the Kyoto Protocols: In conflict or cooperation?
Jan 11, 2010 |
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President Obama's visit to China before December's Copenhagen conference underlined views that the international strategy to tackle climate change truly hinges on cooperation between the United States and the developing Asian ...
Sony makes eco-friendly mini laptop
Electronics / Consumer & Gadgets
Jan 07, 2010 |
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Sony unveiled a mini notebook computer aimed at the hearts of environmentalists.
Japanese project aims to turn CO2 into natural gas
Space & Earth / Earth Sciences
Jan 06, 2010 |
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Japanese researchers said Wednesday they hoped to enlist bacteria in the fight against global warming to transform carbon dioxide buried under the seabed into natural gas.
China adopts law to boost renewable energy industry
Dec 27, 2009 |
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China's national assembly Saturday signalled the country's commitment to reducing greenhouse gas emissions by adopting a law supporting its renewable energy industry.
Panasonic develops direct methanol fuel cell system with high power output and durability
Dec 26, 2009 |
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Panasonic Corporation announced it has developed a direct methanol fuel cell system which can produce an average power output of 20 W by increasing the output per cubic centimeter twice that of its previous prototype. Using ...
China defends role at Copenhagen
Dec 25, 2009 |
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China has defended its role at this month's climate change talks in Copenhagen, saying Premier Wen Jiabao played a key part in sealing an accord, after critics blamed Beijing for blocking negotiations.
