The world's 1.5°C climate goal is slipping out of reach - so now what?

Scientists say it is still theoretically possible to limit global warming to 1.5°C, but realistically that now seems practically impossible. Should we admit our failure and double down on holding warming below 2°C?

The world's 1.5°C climate goal is slipping out of reach - so now what?
Scientists say it is still theoretically possible to limit global warming to 1.5°C, but realistically that now seems practically impossible. Should we admit our failure and double down on holding warming below 2°C?