Engineering Earth's climate might quell global warming, but it could come with a cost

When Mount Pinatubo violently erupted in 1991, the volcano blasted millions of tons of gas well over 20 miles into Earth's atmosphere. After condensing into little droplets, the particles reflected sunlight back into space and cooled the planet by about 1 degree Fahrenheit for over a year. 

Nearly three decades later, some scientists wonder if humans could effectively do the same thing — by using blimps, rockets, or planes — in the name of combating the increasingly ruinous consequences of global warming.

This geoengineering concept, however, may carry some unintended consequences — particularly when it comes to the world's future food supply.  Read more...

More about Science, Global Warming, Climate Change, Geoengineering, and Volcanoes

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