Exxon 'misled the public' on climate change for nearly 40 years - Aug. 23, 2017 -- Harvard study

For nearly 40 years ExxonMobil publicly raised doubt about the dangers of climate change even as scientists and execs inside the oil giant acknowledged the growing threat internally, according to a Harvard University study.....
http://money.cnn.com/2017/08/23/investing/exxon-misled-climate-change-harvard-study/index.html