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Geoengineering to mitigate climate change

Geoengineering to mitigate climate change

Many scientists now support serious research into “geoengineering,” deliberate actions taken to slow or reverse global warming.
Of the various geoengi neering proposals, the ones that shade the earth from the sun could bring about the most immediate effects. But all of them have drawbacks and side effects that probably cannot be anticipated.

Pumping sulfur dioxide into the stratosphere, as volcanoes do, is the most well established way to block the sun. Other proposals call for brightening clouds over the oceans by lofting sea salt into the atmosphere and building a sunscreen in space.
Enter “marine cloud brightening,” a geoengineering scheme that would increase cloud reflectivity over the ocean by spraying them with an ultrafine saltwater mist from ships. The clouds, containing more particles, would cast enough sunlight back into space to at least partially offset the warming effects of all that CO2 from burning fossil fuels.

(Courtesy:Scientific American-Compiled by thrivikramji@gmail.com)

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