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Latest Carbon dioxide in the Earth's atmosphere Stories

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2008-09-23 15:39:24

How much carbon dioxide is too much? According to United Nations Framework Convention on Climate Change (UNFCCC) greenhouse gases in the atmosphere need to be stabilized at levels low enough to "prevent dangerous anthropogenic interference with the climate system." But scientists have come to realize that an even more acute danger than climate change is lurking in the world's oceans "” one that is likely to be triggered by CO2 levels that are modest by climate standards. Ocean...

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2008-08-29 08:55:00

Only changes in carbon dioxide levels are able to explain the transition from the mostly ice-free Greenland of three million years ago, to the ice-covered Greenland of today There have been many reports in the media about the effects of global warming on the Greenland ice-sheet, but there is still great uncertainty as to why there is an ice-sheet there at all. Reporting yesterday (28 August) in the journal Nature, scientists at the University of Bristol and the University of Leeds show that...

2008-08-03 03:00:07

By McElwain, Jennifer PALEOBIOLOGY Plants as a Force of Nature THE EMERALD PLANET: How Plants Changed Earth's History. David Beerling. xvi + 288 pp. Oxford University Press, 2007. $30. Plants, according to paleoclimatologist David Beerling, have shaped the atmosphere (and thus the climate) of the Earth to an amazing extent. In The Emerald Planet, Beerling guides readers through geological time from the earliest record of life through the greening of the planet to the present day, describing...

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2008-04-28 00:30:00

Scientists say long before mankind began burning fossil fuels, there was an eons-long balance between carbon dioxide emissions and Earth's ability to absorb them. But now the planet is having trouble keeping up.A report in the journal Nature Geoscience, is based on ancient Antarctic ice bubbles that contain air samples going back 610,000 years.For the last 25 years, climate scientists have suggested that our planet's temperature and the level of carbon dioxide in the atmosphere have been...

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2008-03-18 14:50:00

Using data from the SCIAMACHY instrument aboard ESA's Envisat environmental satellite, scientists have for the first time detected regionally elevated atmospheric carbon dioxide "“ the most important greenhouse gas that contributes to global warming "“ originating from manmade emissions.More than 30 billion tons of extra carbon dioxide (CO2) is released into the atmosphere annually by human activities, mainly through the burning of fossil fuels. According to the latest report by...

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2008-03-03 11:15:00

Widespread damage from 2007 Eastern US spring freeze attributed to earlier warmingWidespread damage to plants from a sudden freeze that occurred across the Eastern United States from 5 April to 9 April 2007 was made worse because it had been preceded by two weeks of unusual warmth, according to an analysis published in the March 2008 issue of BioScience. The authors of the report, Lianhong Gu and his colleagues at the Oak Ridge National Laboratory and collaborators at NASA, the University of...

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2008-02-15 12:05:15

Now that scientists have reached a consensus that carbon dioxide emissions from human activities are the major cause of global warming, the next question is: How can we stop it" Can we just cut back on carbon, or do we need to go cold turkey" According to a new study by scientists at the Carnegie Institution, halfway measures won't do the job. To stabilize our planet's climate, we need to find ways to kick the carbon habit altogether. In the study, to be published in Geophysical Research...

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2007-12-15 12:00:00

New research paints a bleak picture for coral reefs and the communities that depend on them if emissions of greenhouse gases are not dramatically curbed. But if you think what happens in the warm, clear waters of the tropics has little to do with Maine's cold and choppy seas, think again. Lobsters, sea urchins, clams and scallops -- all critical to Maine's commercial fishing industry -- and even Atlantic salmon could fall prey to the same environmental changes killing off coral reefs in...

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2007-03-08 15:22:38

CHAMPAIGN, Ill. -- Like a piece of chalk dissolving in vinegar, marine life with hard shells is in danger of being dissolved by increasing acidity in the oceans. Ocean acidity is rising as sea water absorbs more carbon dioxide released into the atmosphere from power plants and automobiles. The higher acidity threatens marine life, including corals and shellfish, which may become extinct later this century from the chemical effects of carbon dioxide, even if the planet warms less than...

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2007-01-23 15:41:02

The transition from an ice age to an ice-free planet 300 million years ago was highly unstable, marked by dips and rises in carbon dioxide, extreme swings in climate and drastic effects on tropical vegetation, according to a study published in the journal Science Jan. 5. "This is the best documented record we have of what happens to the climate system during long-term global warming following an ice age," said Isabel Montañez, professor of geology at the University of...


Word of the Day
vermicular
  • Like a worm in form or movement; vermiform; tortuous or sinuous; also, writhing or wriggling.
  • Like the track or trace of a worm; appearing as if worm-eaten; vermiculate.
  • Marked with fine, close-set, wavy or tortuous lines of color; vermiculated.
  • A form of rusticated masonry which is so wrought as to appear thickly indented with worm-tracks.
This word ultimately comes from the Latin 'vermis,' worm.
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