Levels of carbon dioxide in the atmosphere rise and fall each year as plants, through photosynthesis and respiration, take up the gas in spring and summer, and release it in fall and winter.
Earth Sciences
Aug 9, 2013
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The world lost record amounts of Arctic sea ice in 2012 and spewed out all-time high levels of greenhouse gases by burning fossil fuels, international climate scientists said Tuesday.
Earth Sciences
Aug 6, 2013
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A technique for trapping the greenhouse gas carbon dioxide deep underground could at the same be used to release the last fraction of natural gas liquids from ailing reservoirs, thus offsetting some of the environmental impact ...
Earth Sciences
Jul 30, 2013
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Higher levels of air pollution reduced the frequency of North Atlantic hurricanes and other tropical storms for most of the 20th century, a study said Sunday.
Earth Sciences
Jun 23, 2013
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After seeing carbon dioxide levels in the atmosphere surpass a historic threshold last week, the world should brace for the new peak level to soon become the global annual average, the World Meteorological Organization warned ...
Environment
May 14, 2013
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As CO2 levels in the Earth's atmosphere top 400 parts per million, options such as storing the greenhouse gas in porous sandstone rock formations found in abundance on the sea floor are of increasing interest. But how do ...
Environment
May 14, 2013
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Every time Los Angeles exhales, odd-looking gadgets anchored in the mountains above the city trace the invisible puffs of carbon dioxide, methane and other greenhouse gases that waft skyward.
Environment
May 13, 2013
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Climate science researchers from Arizona State University are launching a first-of-its kind online "game" to better understand the sources of global warming gases. By engaging "citizen scientists," the researchers hope to ...
Earth Sciences
May 13, 2013
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A new global-scale modeling study that takes into account nitrogen – a key nutrient for plants – estimates that carbon emissions from human activities on land were 40 percent higher in the 1990s than in studies that did ...
Environment
Apr 19, 2013
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A research team from Birkbeck, University of London, Royal Holloway University and Uppsala University in Sweden, have helped explain how ozone causes severe respiratory problems and thousands of cases of premature death each ...
Materials Science
Apr 16, 2013
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