At COP24, thousands gathered to find concrete ways to move forward on the historic Paris Agreement. Discussions were very much based on October’s alarming report from the Intergovernmental Panel on Climate Change, the IPCC, commissioned by the parties to 2015 Paris climate deal, in which countries committed to do everything in their power to limit global warming to 2 degrees Celsius, and even 1.5 degrees, if possible.

The report, produced by hundreds of scientists, said it wasn’t impossible to cap global warming at 1.5 degrees Celsius but that “unprecedented changes in all aspects of society” would be required: a strong effort to reduce greenhouse gas emissions, of course, but also, active removal of CO2 from the atmosphere.

Yasmina Guerda who was in Katowice throughout for UN News, sat down with one of the leading scientists behind the report, Professor Diana Ürge-Vorsatz.