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Environmental News for a Healthier Planet and Life
Cirrus clouds over Golden Gate Bridge. Brocken Inaglory / Wikimedia Commons

By Tim Radford

Geoengineering, the deliberate alteration of the planet to undo its inadvertent alteration by humans over the past 200 years, is back on the scientific agenda, with a climate compromise suggested as a possible solution.

One group wants to turn down the global thermostat and reverse the global warming trend set in train by greenhouse gases released by fossil fuel combustion, by thinning the almost invisible cirrus clouds that trap radiation and keep the planet warm.

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