Major changes in the Earth's natural systems are being driven by global warming, according to a vast analysis.Glacier and permafrost melting, earlier spring-time, coastal erosion and animal migrations are among the observations laid at the door of man-made warming.
The research, in the journal Nature, involves many scientists who took part in last year's Intergovernmental Panel on Climate Change (IPCC) report.
It links warming and natural impacts on a tighter regional scale.
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