David Keith spoke at MIT Technology Review’s EmTech conference this week.

Geoengineering Could Be Essential to Reducing the Risk of Climate Change

Using technology to cool the planet may be the only way to deal with the greenhouse gases already in the atmosphere, argues scientist David Keith.

By Kevin Bullis on October 25, 2012

Geoengineering—using technology to purposefully change the climate—is the only option for reducing the risk of climate change from greenhouse-gas emissions in the next few decades, says David Keith, a professor of public policy and applied physics at Harvard University. And he says that if it’s done in moderation, it could be much safer than some experts have argued. In fact, says Keith, effective methods of geoengineering are so cheap and easy that just about any country could do it—for better or worse.

Read more: Geoengineering Could Be Essential to Reducing the Risk of Climate Change | MIT Technology Review.

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