“so now we’re able to explain from natural factors how we’ve had the 20th century warming.
“so now we’re able to explain from natural factors how we’ve had the 20th century warming.
scientific consensus on climate change:507
since the start of the 20th century, the global mean surface temperature of the earth has increased by more than 0.7°c and the rate of warming has been largest in the last 30 years.