A UN report has warned it is “unequivocal” that human activity is warming the planet, with the impacts of climate change already being felt around the world.

The report says that it is causing rapid and widespread changes to land, atmosphere and oceans - changes that are unprecedented for many centuries or even many thousands of years.

Cara Augustenborg is Environmental Policy Fellow at University College Dublin and a regular contributor to Newstalk, while Elizabeth Sawin is co-founder of Climate Interactive, a climate think tank in the US.  They explained to Kieran why it's still not too late to address the issues at hand.