BBC Horizon – Global Dimming

We are all seeing rather less of the Sun. Scientists looking at five decades of sunlight measurements have reached the disturbing conclusion that the amount of solar energy reaching the Earth’s surface has been gradually falling. Paradoxically, the decline in sunlight may mean that global warming is a far greater threat to society than previously thought.

BBC Horizon producer David Sington on why predictions about the Earth’s climate will need to be re-examined. Thanks to Phrix for this video.

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