Coral reefs cross survival limit, in Earth's first catastrophic climate tipping point

FRANCE 24's Sharon Gaffney speaks with Professor Tim Lenton, Founding Director of the Global Systems Institute at the University of Exeter, and lead author of the Global Tipping Points report, which has revealed that the world’s coral reefs now in an almost irreversible die-off, marking what scientists describe as the first “tipping point” in climate-driven ecosystem collapse.