Heads of the delegations react at the end of the final session of the COP24 summit on climate change in Katowice, Poland, Saturday, Dec. 15, 2018.

Czarek Sokolowski/AP Photo

Delegations from countries around the world have hammered out out the details to fight climate change at the UN climate summit in Poland.

President Trump announced plans to pull out of the Paris Climate Agreement. But the United States still had representatives at the conference. Paul Bodnar of the clean energy think tank the Rocky Mountain Institute attended the conference. Bodnar worked with the Obama administration on the Paris Accord.
 
Bodnar talked to Colorado Matters about what the United States accomplished at the summit, and why he left feeling hopeful.
 
Editor's Note: A previous version of this story misspelled Paul Bodnar's name.