Salwan Georges / The Washington Post via Getty

Global warming is caused by human activity and failure to address it will cost the US dearly. That’s the uncompromising message from a draft of a major US report on climate science.

The full report is due to be published in the spring by the US Global Change Research Program, a body charged by Congress with assessing climatic impacts on the US every four years. But some of the report’s contents are now public, because it has been reviewed by a committee of the …

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New Scientist – Earth