News tagged with co2 levels
Scientists identify freezing times for Cretaceous dinosaurs
Scientists studying fossils and minerals from Arctic Svalbard, in Norway, have discovered evidence that the ‘greenhouse’ climate of the Cretaceous period was punctuated by a sudden drop in global temperatures.
Space & Earth / Earth Sciences
Apr 26, 2010 |
5 / 5 (3) |
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Governments 'misjudging' scale of CO2 emissions
Policy makers in Europe and United States are markedly underestimating the changes needed to mitigate CO2 emission required to prevent dangerous climate change because they work in 'silos', according to pioneering research. ...
Feb 21, 2010 |
3.4 / 5 (16) |
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USF Study Shows First Direct Evidence of Ocean Acidification
(PhysOrg.com) -- Seawater in a vast and deep section of the northeastern Pacific Ocean shows signs of increased acidity brought on by manmade carbon dioxide in the atmosphere -- a phenomenon that carries with ...
Space & Earth / Earth Sciences
Jan 20, 2010 |
3.8 / 5 (27) |
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Climate scientists underwhelmed by Copenhagen Accord
Top climate scientists said Saturday that the eleventh-hour political deal hammered out at UN talks in Copenhagen falls perilously short of what is needed to stave off catastrophic global warming.
Dec 20, 2009 |
2.7 / 5 (18) |
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Koalas, penguins at risk of extinction: study
Climate change threatens the survival of dozens of animal species from the emperor penguin to Australian koalas, according to a report released Monday at the UN climate summit.
Dec 14, 2009 |
3.3 / 5 (3) |
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Long-Term Effects of Carbon Dioxide on Plants Studied
(PhysOrg.com) -- Long-term, open-top chamber studies of how rising carbon dioxide (CO2) could affect crops, forests, and pastures reveal a wide range of impacts, according to Agricultural Research Service ...
Dec 09, 2009 |
2.2 / 5 (5) |
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Elevated CO2 levels may mitigate losses of biodiversity from nitrogen pollution
Rising levels of carbon dioxide may overheat the planet and cause other environmental problems, but fears that rising CO2 levels could directly reduce plant biodiversity can be allayed, according to a new study by a University ...
Dec 03, 2009 |
3.4 / 5 (8) |
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Climate experts debate strategies for reducing atmospheric carbon and future warming
(PhysOrg.com) -- Reducing carbon dioxide to safe levels may require extracting carbon from the air, says Cornell climate researcher.
Nov 25, 2009 |
2.7 / 5 (15) |
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Oceans absorbing carbon dioxide more slowly, scientist finds
The world's oceans are absorbing less carbon dioxide (CO2), a Yale geophysicist has found after pooling data taken over the past 50 years. With the oceans currently absorbing over 40 percent of the CO2 emitted by human activity, ...
Space & Earth / Earth Sciences
Nov 24, 2009 |
3 / 5 (6) |
9
Antarctic ice loss vaster, faster than thought: study
The East Antarctic icesheet, once seen as largely unaffected by global warming, has lost billions of tonnes of ice since 2006 and could boost sea levels in the future, according to a new study.
Space & Earth / Earth Sciences
Nov 22, 2009 |
3.7 / 5 (54) |
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Scientists Find Ozone Levels Already Affecting Soybean Yields
(PhysOrg.com) -- Current atmospheric ozone levels are already suppressing soybean yields, according to Agricultural Research Service (ARS) scientists and university cooperators studying the effect of global ...
Nov 17, 2009 |
3 / 5 (2) |
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Australian scientists call for urgent 'global cooling' to save coral reefs
(PhysOrg.com) -- Australian marine scientists have issued an urgent call for massive and rapid worldwide cuts in carbon emissions, deep enough to prevent atmospheric CO2 levels rising to 450 parts per million (ppm).
Nov 09, 2009 |
1.8 / 5 (5) |
2
Plants Save the Earth from an Icy Doom (w/ Podcast)
(PhysOrg.com) -- Fifty million years ago, the North and South Poles were ice-free and crocodiles roamed the Arctic. Since then, a long-term decrease in the amount of CO2 in the atmosphere has cooled the Earth. ...
Space & Earth / Earth Sciences
Jul 01, 2009 |
3.8 / 5 (9) |
5
High carbon dioxide levels cause abnormally large fish ear bones
Rising carbon dioxide levels in the ocean have been shown to adversely affect shell-forming creatures and corals, and now a new study by researchers at Scripps Institution of Oceanography at UC San Diego has ...
Jun 25, 2009 |
3 / 5 (2) |
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Close relationship between past warming and sea-level rise
Scientists from the National Oceanography Centre, Southampton, along with colleagues from Tuebingen and Bristol have reconstructed sea-level fluctuations over the last 520,000 years. Comparison of this record with data on ...
Space & Earth / Earth Sciences
Jun 22, 2009 |
3.8 / 5 (19) |
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