Jim Hanson

Jim Hansen is a prominent American climatologist and former director of NASA's Goddard Institute for Space Studies. He is widely recognized for his early and influential research on climate change, particularly his 1988 testimony before Congress, which helped raise public awareness about global warming. Hansen's work focuses on understanding the effects of greenhouse gases on Earth’s climate, and he has been a strong advocate for urgent action to combat climate change. Through his research and activism, he has played a key role in shaping climate policy and public perception regarding the seriousness of climate issues.