Mark Hertsgaard

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A Fierce Green Fire
02:30 — A Fierce Green Fire
Mark Hertsgaard on Combating Climate Change with Photosynthesis
Scientists calculate that temperatures will keep rising for the next 50 years, no matter how drastically we cut greenhouse gas emissions. Open Society (more…)
Witness: Shooter was right behind me
01:23 — Mark Hertsgaard, who was wounded in the New Orleans Mother's Day attack recounts moments of terror before being shot.