COP24: World leaders to discuss climate challenges in Poland

Negotiators from 200 countries are gathering in Katowice, Poland, for the latest global conference on climate change.

During the 24th Conference of the Parties to the United Nations Framework Convention on Climate Change, or COP24, the participating nations hope to agree on details of the 2015 Paris climate deal.

But a lot has changed since then, especially after United States President Donald Trump decided to pull out of the agreement.

Al Jazeera’s Nick Clark reports.