NASA'S HANSEN: We'd have to reduce CO2 emissions at six percent a year if we began next year. sci am

The Scientist: Jim Hansen Risks Handcuffs to Make His Research Clear

Scientific American - ‎21 hours ago‎

Hansen, who has directed NASA's Goddard Institute for Space Studies for 31 years, earned the sobriquet "father of global warming" after testifying before Congress in 1988 on the dangers of global warming. He appeared again in 1989.

Why Does NASA's Chief Climate Scientist Keep Getting Arrested?Gizmodo

Hansen on Climate: “We need to make clear to the public what's really going on”Universe Today