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Tomorrow Today

Solar Cycles and Climate Change: More than just hot air?

Most climatologists agree that human activity is a decisive factor in global warming. But the question of whether the sun's activity also plays a role nowadays keeps cropping up.

Watch video 06:21

Researchers from Potsdam investigate the scientific basis, or lack thereof, of such claims. Their verdict: a range of factors affect temperatures on earth. The sun's activity is just one of them, and its role is relatively minor.