Ian Bremmer shares his insights on global politics this week with a look at world leaders' deforestation pledge, US election outlooks, and China's "zero COVID" policy.

World leaders are pledging to end deforestation by 2030. What are the updates on COP26?

Well, that is one of the wins. It's the same pledge, but more countries are on board. The Russians, the Chinese, others that weren't before, and also, we're seeing movement on methane reduction pledges. Not as significant in amount as carbon dioxide emissions, but more dangerous in terms of impact on global warming. But the big issue, of course, is that still on carbon into the atmosphere, much lower coordination than you desperately need between north and south, rich and poor, Americans and Chinese. We are very far from where we want to be on that, and there, COP26 is a disappointment.