(CNBC) Human activity is the primary cause of rising global temperatures in recent decades, and there is no convincing evidence to the contrary, according to a report issued Friday by 13 U.S. agencies. The assessment, approved by the White House, contradicts public statements by President Donald Trump and several top members of his administration.
The findings came in the Fourth National Climate Assessment, an authoritative review of climate science. The assessment finds that the period from 1901-2016 was the warmest in modern civilization and warns that temperatures and sea levels will rise much more if no action is taken.
"This assessment concludes, based on extensive evidence, that it is extremely likely that human activities, especially emissions of greenhouse gases, are the dominant cause of the observed warming since the mid-20th century," the report finds.
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