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Latest Carbon dioxide in the Earth's atmosphere Stories

2010-02-04 14:29:09

The increasing acidity of the world's oceans - and that acidity's growing threat to marine species - are definitive proof that the atmospheric carbon dioxide that is causing climate change is also negatively affecting the marine environment, says world-renowned Antarctic marine biologist Jim McClintock, Ph.D., professor in the University of Alabama at Birmingham (UAB) Department of Biology. "The oceans are a sink for the carbon dioxide that is released into the atmosphere," says McClintock,...

2009-12-08 18:03:51

Carbon dioxide (CO2) is the most important greenhouse gas regulated by the Kyoto Protocol. Human activities, such as fossil fuel burning and land use change, are major emitters of CO2, which is widely recognized as drivers of global warming and climate change. In the past decades, the field campaign and research program were only conducted at a few sites in China by different agencies. However, none of those measurements could effectively document spatial and temporal distributions of...

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2009-12-06 13:43:24

The Earth's temperature may be 30-50 percent more sensitive to atmospheric carbon dioxide than has previously been estimated, reports a new study published in Nature Geoscience this week In the long term, the Earth's temperature may be 30-50% more sensitive to atmospheric carbon dioxide than has previously been estimated, reports a new study published in Nature Geoscience this week. The results show that components of the Earth's climate system that vary over long timescales "“ such as...

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2009-12-04 09:45:00

The rising level of atmospheric carbon dioxide may be fueling more than climate change. It could also be making some trees grow like crazy. That is the finding of a new study of natural stands of quaking aspen, one of North America's most important and widespread deciduous trees. The study, by scientists from the University of Wisconsin-Madison and the University of Minnesota at Morris (UMM) and published today (Dec. 4) in the journal Global Change Biology, shows that elevated levels of...

2009-11-30 15:52:08

Burning rainforests release huge amounts of greenhouse gases Peatlands, especially those in tropical regions, sequester gigantic amounts of organic carbon. Human activities are now having a considerable impact on these wetlands. For example, drainage projects, in combination with the effects of periodic droughts, can lead to large-scale fires, which release enormous amounts of carbon dioxide (CO2) into the atmosphere, and thus contribute to global warming. Using laser-based measurements,...

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2009-09-15 06:40:00

Researchers have confirmed for the first time a link between declining levels of atmospheric carbon dioxide (CO2) and the formation of Antarctic ice caps some 34 million years ago. The results of the major research study support computer climate models that predict both the creation of ice sheets when CO2 levels fall and the melting of ice caps when CO2 levels rise. "Our study is the first to provide a direct link between the establishment of an ice sheet on Antarctica and atmospheric carbon...

2009-08-21 11:40:00

WASHINGTON, Aug. 21 /PRNewswire-USNewswire/ -- Utility giant AEP has applied for $334 million in stimulus money to construct the first commercial scale CO2 capture and storage project at a West Virginia coal-fired power plant. That's about half the money needed for the project. The project goal is to capture 1.5 million metric tons of CO2 per year and then to store it 1.5 miles below the surface. Left unanswered, however, are some very significant questions: Q How much of a difference...

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2009-07-14 11:50:00

Unknown processes account for much of warming in ancient hot spellNo one knows exactly how much Earth's climate will warm due to carbon emissions, but a new study this week suggests scientists' best predictions about global warming might be incorrect. The study, which appears in Nature Geoscience, found that climate models explain only about half of the heating that occurred during a well-documented period of rapid global warming in Earth's ancient past. The study, which was published...

2009-06-24 08:46:38

Does ozone have an impact on the ocean's role as a "carbon sink"? Yes, according to researchers from three laboratories (1) attached to INSU-CNRS (2), UPMC, CEA, IRD, MNHN and UVSQ. Using original simulations, they have demonstrated that the hole in the ozone layer reduces atmospheric carbon uptake in the Southern Ocean and contributes to the increase in ocean acidity. These results, which are published online in the journal Geophysical Research Letters, should have a considerable impact on...

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2009-06-19 06:13:13

Study offers detailed look at past greenhouse gas levels Researchers have reconstructed atmospheric carbon dioxide levels over the past 2.1 million years in the sharpest detail yet, shedding new light on its role in the earth's cycles of cooling and warming. The study, in the June 19 issue of the journal Science, is the latest to rule out a drop in CO2 as the cause for earth's ice ages growing longer and more intense some 850,000 years ago. But it also confirms many researchers' suspicion...


Word of the Day
tesla
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.