A cost analysis of the technologies needed to transport materials into the stratosphere to reduce the amount of sunlight hitting Earth and therefore reduce the effects of global climate change has shown that they are both ...
Earth Sciences
Aug 31, 2012
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Even though it sounds like science fiction, researchers are taking a second look at a controversial idea that uses futuristic ships to shoot salt water high into the sky over the oceans, creating clouds that reflect sunlight ...
Earth Sciences
Aug 20, 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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Solar radiation management is a class of theoretical concepts for manipulating the climate in order to reduce the risks of global warming caused by greenhouse gasses. But its potential effectiveness and risks are uncertain, ...
Environment
Oct 26, 2011
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(PhysOrg.com) -- A Harvard physicist has proposed the Earth could be cooled by pumping vast numbers of tiny bubbles into the sea to lower ocean temperatures and increase the water’s reflectivity. The same strategy could ...
Sci-fi proposals to cool the planet are laden with risk but may be Earth's only hope if politicians fail to tackle global warming, scientists said on Tuesday in their biggest evaluation to date of "geo-engineering" concepts.
Environment
Sep 1, 2009
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When I first wrote about geoengineering in 2012 , it was considered far-fetched at best, and crazy by most. But 12 years later, while there is still controversy and considerable resistance to deploying it, respectable scientists ...
Environment
Apr 25, 2024
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When talk turns to climate change, certain images pop to mind—maybe polar bears on ever-shrinking ice floes, coral reefs drained of color, or more powerful hurricanes hitting the coast.
Environment
Apr 23, 2024
0
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A group of 60 scientists called for a moratorium on solar geoengineering last month, including technologies such as stratospheric aerosol injection (SAI). This involves a fleet of airplanes releasing aerosol particles—which ...
Environment
Feb 14, 2022
1
52
It sounds like something out of a bad science fiction movie—artificially blocking sunlight to keep global warming from overheating the Earth. Nevertheless, a small cadre of researchers is studying the option—so that if ...
Earth Sciences
Sep 16, 2021
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