“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:130
the introduction includes this statement: there is strong evidence that the warming of the earth over the last half-century has been caused largely by human activity, such as the burning of fossil fuels and changes in land use, including agriculture and deforestation.