Polar ice reveals secrets of carbon-climate feedbacks
An international team of scientists has used air bubbles in polar ice from pre-industrial times to measure the sensitivity of the Earth's land biosphere to changes in temperature.
An international team of scientists has used air bubbles in polar ice from pre-industrial times to measure the sensitivity of the Earth's land biosphere to changes in temperature.
Earth Sciences
Jul 26, 2016
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The UN's climate chief called for urgency Monday as she opened a new round of global talks amid warnings that Earth-warming carbon dioxide levels were approaching a symbolic threshold never seen in human history.
Environment
Apr 29, 2013
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(Phys.org) —Under elevated carbon dioxide levels, wetland plants can absorb up to 32 percent more carbon than they do at current levels, according to a 19-year study published in Global Change Biology from the Smithsonian ...
Environment
Jul 16, 2013
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UK researchers have identified a biological mechanism that could explain how the Earth's atmospheric carbon dioxide and climate were stabilised over the past 24 million years. When CO2 levels became too low for plants to ...
Earth Sciences
Jan 23, 2014
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Deforestation has had a big influence on the increase of carbon dioxide (CO2) emissions in the past three centuries, but its impact is tapering off relatively. Nowadays, the burning of fossil fuels is a more crucial factor. ...
Environment
Nov 26, 2009
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(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. Researchers ...
Earth Sciences
Jul 1, 2009
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A common type of blue-green algae is finding it easy to adapt to Earth's rising CO2 levels, meaning blue-green algae – of which there are many toxin-producing varieties – are even more adept at handling changing climatic ...
Environment
Aug 4, 2016
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Scientists from the University of Amsterdam are warning that problems with toxic cyanobacteria are likely to increase in the future. In an article in the journal Science Advances, they show that a common cyanobacterium adapts ...
Plants & Animals
Feb 20, 2020
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Global warming is likely to speed up as the Earth becomes increasingly more sensitive to atmospheric CO₂ concentrations, scientists from the University of Reading have warned.
Environment
Nov 29, 2017
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At the elevated levels of atmospheric CO2 anticipated by around 2050, crops that provide a large share of the global population with most of their dietary zinc and iron will have significantly reduced concentrations of those ...
Environment
May 7, 2014
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