James Hanson — hero

Worldwatch Institute is partnering with Grist to bring you this three-part series commemorating the 20-year anniversary of NASA scientist James Hansen's groundbreaking testimony on global climate change next week.Part 1 — A Climate Hero: The Early YearsPart 2 — A Climate Hero: The TestimonyPart 3 — A Climate Hero: An Outspoken TruthGreat reading.