Planetary Peril, Free Speech Vs. Hate Speech, The FBI's First Major Homicide Case Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email Trump Announces Withdrawal From Paris Climate Agreement China and India Emerge as Leaders on Climate Change The Trials of Marvin Mutch Activists Investigating Factory that Makes Ivanka Trump Shoes Detained or Missing Portland's Long History of Racism and White Supremacy Free Speech or Hate Speech? Rallies Stir Debate After Portland Stabbing Slaughter of Osage Natives Reveals Complicated Web of Conspiracy World leaders achieved a landmark deal on climate change earlier this month. Now comes the hard part: Implementing it. Despite previous failures, one environmental leader is hopeful. ( Angela Waye / Shutterstock ) Produced by PRI and WNYC