Do Climate Summits Like COP26 Really Matter?

A member of security moves to apprehend a demonstrator at the COP26 U.N. Climate Summit in Glasgow, Scotland, Saturday, Nov. 13, 2021.
( Alastair Grant / AP Photo )

Produced by Meg Dalton

Hosted by Melissa Harris-Perry

Produced by GBH, PRX and WNYC Studios