News tagged with atmospheric gases

Cracking the ice code

(Phys.org) —What happened the last time a vegetated Earth shifted from an extremely cold climate to desert-like conditions? And what does it tell us about climate change today?

dateMay 20, 2013 in Earth Sciences
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Greenhouse gases: The measurement challenge

The continuing increase in the level of carbon dioxide and other "greenhouse gases" in the Earth's atmosphere has been identified as a cause for serious concern because it may radically accelerate changes in the Earth's climate. ...

dateAug 17, 2011 in Environment
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Climate sensitivity greater than previously believed

Many of the particles in the atmosphere are produced by the natural world, and it is possible that plants have in recent decades reduced the effects of the greenhouse gases to which human activity has given rise. One consequence ...

dateDec 20, 2011 in Environment
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Unclouding our view of future climate

If we had a second Earth, we could experiment with its atmosphere to see how increased levels of greenhouse gases would change it, without the risks that come with performing such an experiment. Since we ...

dateMay 22, 2014 in Earth Sciences
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