Clouds reflect some incoming sunlight, tending to cool Earth's surface, but they also trap some heat leaving Earth's surface, causing warming. These effects, known as cloud radiative forcing, play a key role in temperature ...
Earth Sciences
Aug 14, 2013
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Volcanic eruptions spew sulfur dioxide into the atmosphere, which tends to block incoming sunlight, sometimes cooling the planet for several years. This cooling leads to a decrease in the heat stored in the ocean and thus ...
Earth Sciences
May 28, 2013
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A new study has found that pollution from fine particles in the air – mainly the result of burning coal or volcanic eruptions – can shade corals from sunlight and cool the surrounding water resulting in reduced growth ...
Environment
Apr 7, 2013
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Geoengineering, the use of human technologies to alter the Earth's climate system—such as injecting reflective particles into the upper atmosphere to scatter incoming sunlight back to space—has emerged as a potentially ...
Environment
Mar 14, 2013
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The Arctic sea ice is shrinking, both in extent and thickness. In addition to the manmade contribution to the sea ice loss, there are also natural factors contributing to this loss. In a new study from the Bjerknes Centre ...
Earth Sciences
Jan 14, 2013
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Glaciation events during the Neoproterozoic (524-to-1,000 million years ago) and Paleoproterozoic (1,600-to-2,500 million years ago) periods - events that spawned ice ages that persisted for millions of years at a time - ...
Earth Sciences
Nov 13, 2012
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A University of Saskatchewan-led international research team has discovered that aerosols from relatively small volcanic eruptions can be boosted into the high atmosphere by weather systems such as monsoons, where they can ...
Earth Sciences
Jul 5, 2012
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(Phys.org) -- The dramatic melt-off of Arctic sea ice due to climate change is hitting closer to home than millions of Americans might think. That's because melting Arctic sea ice can trigger a domino effect leading to increased ...
Earth Sciences
Jun 6, 2012
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Researchers in Finland have discovered that climate change has impacted various regions of the Arctic tundra by helping increase the levels of vegetation. Their data suggest that this rise could potentially speed up global ...
Environment
Apr 11, 2012
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Some climate cooling caused by past volcanic eruptions may not be evident in tree-ring reconstructions of temperature change because large enough temperature drops lead to greatly shortened or even absent growing seasons, ...
Earth Sciences
Feb 5, 2012
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