Climate change is happening, it is almost entirely man’s fault and limiting its impacts may require reducing greenhouse gas emissions to zero this century, the UN’s panel on climate science said Sunday.
The fourth and final volume of the Intergovernmental Panel on Climate Change’s giant climate assessment didn’t offer any surprises, but it did underline the scope of climate challenge in stark terms.
Emissions may need to drop to zero by the end of this century for the world to have a decent chance of keeping the temperature rise below a level that many consider dangerous.
ABC’s Tom Rivers joined us to discuss.
Follow us on Twitter: