'Crops could keep Earth cool' say scientists

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University researchers claim crops could help cool Earth, in just one inventive suggestion being made to prevent climate change.

The study, from Bristol, says that crops with larger, shinier leaves could reflect more heat back into space.

It is the latest in a series of ideas on how to artificially reduce global temperatures should they run out of control.

Other "geo-engineering" plans include putting mirrors in space.

The BBC's Neil Bowdler reports.

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