Why is Rishi now going to Cop?

Rishi Sunak has said that he will now attend the Cop 27 summit in Sharm el-Sheikh, which begins on Sunday. What's behind the U-turn, and should we expect more policy reversals from the new PM? 

Katy Balls speaks to Fraser Nelson and James Forsyth.

Produced by Oscar Edmondson and Max Jeffery.