April 23, 2017
Katherine Hayhoe, director of the Climate Science Center at Texas Tech University, co-author for two National Climate Assessments:
"If you look way back in the paleoclimatic history of the earth, there has never been a period of time when this much carbon has been put into the atmosphere this fast. So we don't really even have any analogue to understand how quickly and how massively the climate system could respond to what we're doing."
Read the story here.