Humans cause up to 70% of sea-ice loss

Monday 20 Mar 17 10:00am

Sea ice in the Arctic has declined dramatically in the last 50 years | US Coast Guard

By TIM RADFORD | Scientists have calculated that at least 30 per cent and perhaps one half of the decline in Arctic summer sea ice could be attributed to natural causes – changes of ocean and atmospheric circulation that happen according to some long-term cycle.

And that means humans can be held responsible for at least 50 per cent and up to 70 per cent of a pattern of decline that could devastate Arctic ecology, and accelerate climate change in the temperate and tropical zones.

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Related Topics: Greenhouse Effect

Humans cause up to 70% of sea-ice loss

Monday 20 Mar 17 10:00am

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