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'Earth in Human Hands': Q&A with Astrobiologist David Grinspoon

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opednews.com Headlined to H4 3/4/17

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Astrobiologist David Grinspoon discusses how humans are changing Earth today, and what that might mean in the hunt for alien life.

Space.com: That goes back to geoengineering. I love that you count asteroid deflection and planetary protection as part of geoengineering; it's not something I've really considered. It's also interesting that you describe us as already geoengineering the planet negatively.Grinspoon: And positively. When we do reforestation, fix the ozone, these are kinds of geoengineering. Even when we have the Paris Climate Agreement and decide we're going to reduce our emissions collectively, we are going to shoot for that target, that's a kind of geoengineering.

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molly cruz

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Nobody ever listens to me; so it's nice to be bolstered by someone of authority...read on!

Submitted on Saturday, Mar 4, 2017 at 5:32:39 AM

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