News tagged with co2 levels
Dry conditions spurred advanced photosynthesis
The need to conserve water played a vital role in driving plants to evolve a specialised form of photosynthesis, scientists have shown.
Feb 03, 2012 |
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Carbon dioxide affecting fish brains: study
Rising human carbon dioxide emissions may be affecting the brains and central nervous systems of sea fish, with serious consequences for their survival, according to new research.
Jan 16, 2012 |
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Human activity pulling the plug on a vital carbon sink
(PhysOrg.com) -- Under better conditions coastal ecosystems might be the ace in the hole to mitigate climate change, but human activity is significantly weakening their ability to naturally dampen the impacts of rising CO2 ...
Nov 16, 2011 |
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Scientists warn Spanish cave should remain off the tourist map
(PhysOrg.com) -- The World Heritage listed Altamira Cave at Cantabria in northern Spain, is home to some of the most perfect examples of Paleolithic cave paintings in Europe, but threats posed by tourists ...
Other Sciences / Archaeology & Fossils
Oct 07, 2011 |
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Earth is having a bad acid trip, study finds
Earth may be overdosing on acid - not the "turn on, tune in, drop out" kind, but the "kill fish, kill coral, kill crops" kind. And it's shaping up to be a very bad trip.
Oct 03, 2011 |
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Shells slim down with CO2
Marine algae that turn carbon dissolved in seawater into shell will produce thinner and thinner shells as carbon dioxide levels increase.
Aug 09, 2011 |
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Scientists study effects of rising carbon dioxide on rangelands
Rising carbon dioxide (CO2) levels can reverse the drying effects of predicted higher temperatures on semi-arid rangelands, according to a study published today in the scientific journal Nature by a team of U.S. Departmen ...
Aug 03, 2011 |
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How hot did Earth get in the past? Scientists uncover new information
The question seems simple enough: What happens to the Earth's temperature when atmospheric carbon dioxide levels increase? The answer is elusive. However, clues are hidden in the fossil record. A new study ...
Space & Earth / Earth Sciences
Jul 05, 2011 |
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Curb soot and smog to keep Earth cool, says UN
Sharply reducing emissions of soot and smog could play a critical role in preventing Earth from overheating, according to a UN report released on Tuesday.
Jun 14, 2011 |
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CO2 makes life difficult for algae
The acidification of the world's oceans could have major consequences for the marine environment. New research shows that coccoliths, which are an important part of the marine environment, dissolve when seawater acidifies.
Space & Earth / Earth Sciences
May 10, 2011 |
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Arctic studies show dire effect of ocean acidity
The icy Arctic waters around Norway's archipelago of Svalbard may seem pristine and clear, but like the rest of the world's oceans they are facing the threat of growing acidity.
Space & Earth / Earth Sciences
Jul 26, 2010 |
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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 |
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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 |
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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 |
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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 |
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