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
Panasonic develops direct methanol fuel cell system with high power output and durability
13 hours ago |
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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.
Diplomatic frenzy at final day of UN climate talks
Dec 18, 2009 |
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(AP) -- A diplomatic frenzy enveloped the final day of the U.N. climate conference Friday, with President Barack Obama twice meeting privately with China's premier as world leaders pressed to salvage a global ...
Forests take center stage at Copenhagen
Dec 17, 2009 |
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As the UN Climate Conference in Copenhagen approaches its conclusion, negotiations are focusing on the role of forests in mitigating climate change. The new 'Reducing Emissions from Deforestation and Forest ...
NASA, Google offer more precise emissions tracking
Dec 17, 2009 |
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(AP) -- The question is a potential deal-killer: If nations ever agree to slash greenhouse gas emissions, how will the world know if they live up to their pledges?
US-China showdown still looms over climate talks
Dec 15, 2009 |
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(AP) -- In a showdown between the world's two largest polluters, China accused the United States and other rich nations Tuesday of backsliding on fighting global warming and the top U.S. envoy said Chinese ...
World's mayors tackle climate change on their own
Dec 14, 2009 |
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(AP) -- It isn't easy getting Italy's city dwellers out of their Fiats, off their Vespa scooters and onto bicycles to ride to work, "like here in Copenhagen," says an Italian environmental official.
Science not faked, but not pretty
Dec 12, 2009 |
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(AP) -- E-mails stolen from climate scientists show they stonewalled skeptics and discussed hiding data - but the messages don't support claims that the science of global warming was faked, according to an ...
UN talks: Rich nations must make big emission cuts
Dec 11, 2009 |
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(AP) -- Wealthy nations would commit to drastically reduce greenhouse gas emissions in the next decade, and the world should strive to nearly eliminate them - or at least cut them in half - by 2050 under ...
Breakthrough in monitoring tropical deforestation announced in Copenhagen
Dec 10, 2009 |
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Tropical forest destruction accounts for some 20% of global greenhouse gas emissions. But quantifying these emissions has not been easy, particularly for tropical nations. New technology, developed by a team ...
EU grants 1.5 billion euros for wind farms, carbon capture
Dec 09, 2009 |
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The EU commission on Wednesday granted 1.5 billion euros (2.2 billion dollars) to offshore wind farms and carbon capture and storage schemes to help relaunch Europe's economy and cut greenhouse gas emissions.
EPA head: US must make up for lost time on climate
Dec 09, 2009 |
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(AP) -- The top U.S. environmental official told a divided U.N. climate conference Wednesday that the Obama administration's moves to "make up for lost time" and cut greenhouse gases would complement congressional ...
Don't Blame Cows for Climate Change
Dec 08, 2009 |
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(PhysOrg.com) -- Despite oft-repeated claims by sources ranging from the United Nations to music star Paul McCartney, it is simply not true that consuming less meat and dairy products will help stop climate ...
Leaked document stirs anger at climate summit
Dec 08, 2009 |
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(AP) -- A leaked Danish document at the U.N. climate conference provoked angry criticism Tuesday from developing countries who feared it would shift more of the burden to curb greenhouse gases on poorer countries.
List of 'unsung' wildlife affected by climate change released
Dec 07, 2009 |
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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.
