https://climate.nasa.gov/scientific-consensus/
"Multiple studies published in peer-reviewed scientific journals1 show that 97 percent or more of actively publishing climate scientists agree: Climate-warming trends over the past century are extremely likely due to human activities."
Ill edit to add if I can find a consensus on how greatly they expect the earth to warm by the end of the century (without changes to CO2 pollution).
Edited by Badird at 15:02:25 on 08/03/17