All Articles Tagged As: carbon
A reconstruction of plants' productivity and the amount of carbon stored in the ocean and terrestrial biosphere at the last ice age is published today in Nature Geoscience. The research by an international team of scientists greatly increases our understanding of natural carbon cycle dynamics.
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Studying the behavior of carbon -- the essential element in oil and natural gas -- deep within the Earth is the aim of a new initiative co-directed by a UC Davis chemistry professor and funded by a two-year, $1.5 million grant from the Alfred P. Sloan Foundation.
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Carbon capture and storage is an important tool to combat climate change. However, because there are no standards to store CO2 deep underground one to two kilometers, an environmental non-government organization called IPAC-CO2 began work in June 2010 with the Canadian Standards Association to do so. The draft standard now is available for public review and comment.
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 | After the last ice age peaked about 18,000 years ago, levels of atmospheric carbon dioxide rose about 30 percent. Scientists believe that the additional carbon dioxide -- a heat-trapping greenhouse gas -- played a key role in warming the planet and melting the continental ice sheets. They have long hypothesized that the source of the gas was the deep ocean. ...> Full Article |
 | The carbon cycle, upon which most living things depend, reaches much deeper into the Earth than generally supposed -- all the way to the lower mantle, researchers report. ...> Full Article |
The Earth may be able to recover from rising carbon dioxide emissions faster than previously thought, according to evidence from a prehistoric. When faced with high levels of atmospheric carbon dioxide and rising temperatures 56 million years ago, the Earth increased its ability to pull carbon from the air. This led to a recovery that was quicker than anticipated by many models of the carbon cycle.
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Researchers in Washington State have developed a way to study the effects of super-critical carbon dioxide on minerals commonly found in potential underground storage sites, helping to evaluate one strategy for minimizing the impacts of greenhouse gases on global warming.
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Imagine loosening the screw-top of a soda bottle and hearing the carbon dioxide begin to escape. Then imagine taking the cap off quickly, and seeing the beverage foam and fizz out of the bottle. Then, imagine the pressure equalizing and the beverage being ready to drink.
Rutgers marine scientist Elisabeth Sikes says that something similar over a 1,000 year period after the end of the last ice age -- or glaciation, as scientists call it.
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Scientists have found the possible source of a huge carbon dioxide "burp" that happened some 18,000 years ago and which helped to end the last ice age.
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Acidic clouds are feeding bioavailable iron to the oceans -- a discovery which sheds light on the natural processes that remove carbon dioxide from the atmosphere.
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You must go back 15 million years to find carbon dioxide levels as high as they are today, Earth scientists report Oct. 8 in the journal Science online. "The last time carbon dioxide levels were apparently as high as they are today and sustained at those levels, global temperatures were 5 to 10 degrees Fahrenheit higher than they are today," said Aradhna Tripati, UCLA assistant professor of Earth and space sciences and lead author.
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Four expert speakers attended an event organized by the Institute of Physics, the Royal Society of Chemistry and the Royal Academy of Engineering on July 15 at the House of Commons to address an audience curious about geoengineering the planet to combat the effects of global warming; the solutions it offers and the concerns it raises.
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New study compares 13C/12C records from carbonate platforms in 3 ocean basins
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Researchers are conducting a large-scale experiment that will have a dramatic impact on future outlook on greenhouses gases, fossil fuels and the oil and gas industry
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 | Knowing the structure and detailed composition of soil carbon could provide a better understanding of the chemical processes that cycle organic matter in soil. ...> Full Article |
 | The asteroid presumed to have wiped out the dinosaurs struck the Earth with such force that carbon deep in the Earth's crust liquefied, rocketed skyward, and formed tiny airborne beads that blanketed the planet ...> Full Article |
 | If carbon dioxide emissions from the burning of fossil fuels continue on a "business-as-usual" trajectory, humans will have added about 5 trillion metric tons of carbon to the atmosphere by the year 2400. A similarly massive release of carbon accompanied an extreme period of global warming 55 million years ago known as the Paleocene-Eocene Thermal Maximum (PETM). ...> Full Article |
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