The Fall of ExxonMobil

In 1988, a young atmospheric scientist at the NASA Goddard Institute for Space Studies dropped a bomb on Congress. James Hansen told regulators and the world that climate change was upon us. In just five years, Exxon had gone from a place of great innovation to a fairly standard conservative oil company. If they'd stopped there, it would have been a shame, but we probably wouldn't still be talking about it 30 years later.