NPR's On Point spoke with CBI Board Member William Moomaw, professor emeritus of international environmental policy at Tufts University and visiting scientist at the Woodwell Climate Research Center, about the U.N.'s International Panel on Climate Change's latest report assessing the risks of climate change to the end of this century. Moomaw spoke to the urgency of the moment, expectations for warmer temperatures and wilder weather, and what can be done to prevent a global climate tipping point.

“For the first time there is just no equivocation that human activities — and they are specified in this report — that those activities have caused the changes that we are seeing. And that we have to act very quickly to abate them. And we will have some of these with us, not just for years, but for centuries and maybe millennia.”

Listen to the full episode below or on WBUR's website, here.