What the world did and didn’t accomplish at COP26

It's a step in the right direction, but more needs to be done. COP26 saw the most robust global commitments towards fighting climate change in history, yet they're still not enough to meet the ambitious target of staving off some of the worst consequences of global warming. Umair Irfan critically examines the actions of the world's largest greenhouse gas emitters and explains why the ambitious targets set in the Paris agreement in 2015 are still a long way off.