Future of Engineering

Friday, March 21, 2008

Is Geoengineering the Solution for Global Warming?

For most environmentalists, the answer to reducing global warming is to keep pushing the same message harder: cut carbon and cut it now. But a few scientists are beginning to quietly raise the possibility of cooling the planet's fever directly through geoengineering. The principle behind it is straightforward — compensate for an intensified greenhouse effect by reducing the amount of solar radiation reaching the earth — but the techniques seem like pure science fiction. Just a few: using orbital mirrors to bounce sunlight back into space, fertilizing the oceans with iron to amplify their ability to absorb carbon and even painting roofs white to increase solar reflection.

Geoengineering has long been the province of kooks, but as the difficulty of reducing greenhouse-gas emissions has become harder to ignore, it is slowly emerging as an option of last resort.

Read more from this Time article

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Geoengineering as a Solution to Global Warming
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Comments:
I think that we have to try.
With world population expected to be increased by 33% by 2050 the anthropogenic stress on our planet will necessitate action.
 
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