New York Times: "A landmark report from the United Nations’ 
scientific panel on climate change paints a far more dire picture of the immediate consequences of climate change than previously thought and says that avoiding the damage requires transforming the world economy at a speed and scale that has 'no documented historic precedent.'”
"The report, issued on Monday by the Intergovernmental Panel on Climate Change, a group of scientists convened by the United Nations to guide world leaders, describes a world of worsening food shortages and wildfires, and a mass die-off of coral reefs as soon as 2040 — a period well within the lifetime of much of the global population."
"The report was written and edited by 91 scientists from 40 countries who analyzed more than 6,000 scientific studies."