Giant volcanic eruptions in Nicaragua over the past 70,000 years could have injected enough gases into the atmosphere to temporarily thin the ozone layer, according to new research. And, if it happened today, a similar explosive ...
Earth Sciences
Jun 12, 2012
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One idea for fighting global warming is to increase the amount of aerosols in the atmosphere, scattering incoming solar energy away from the Earth's surface. But scientists theorize that this solar geoengineering could have ...
Earth Sciences
May 31, 2012
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Enormous volcanic eruptions with potential to end civilizations may have surprisingly short fuses, researchers have discovered.
Earth Sciences
May 30, 2012
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Black carbon aerosols and tropospheric ozone, both manmade pollutants emitted predominantly in the Northern Hemisphere's low- to mid-latitudes, are most likely pushing the boundary of the tropics further poleward in that ...
Earth Sciences
May 16, 2012
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A video posted on YouTube Wednesday appeared to show the amazing voyage of a Lego man sent into space on a homemade spacecraft by two Toronto students.
Space Exploration
Jan 25, 2012
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Carbon dioxide emissions from the burning of coal, oil, and gas have been increasing over the past decades, causing the Earth to get hotter and hotter. There are concerns that a continuation of these trends could have catastrophic ...
Environment
Jan 22, 2012
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Humans pump thousands of tons of vapor from the metallic element mercury into the atmosphere each year, and it can remain suspended for long periods before being changed into a form that is easily removed from the atmosphere.
Environment
Dec 18, 2011
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(PhysOrg.com) -- Last month it was announced that a group of researchers had come together to start a geoengineering project called Stratospheric Particle Injection for Climate Engineering (SPICE). Its aim was, and still ...
A new discovery by scientists at the Universities of East Anglia and Frankfurt could make it possible in future to identify the source of banned CFCs that are probably still being released into the atmosphere.
Earth Sciences
Sep 2, 2010
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(PhysOrg.com) -- NASA scientists analyzing 30 years of satellite data have found that the amount of ultraviolet (UV) radiation reaching Earth's surface has increased markedly over the last three decades. Most of the increase ...
Earth Sciences
Mar 16, 2010
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