Key points

1. There’s a great deal of scientific uncertainty around when tipping points will be triggered. We do know that the risk increases with every 0.1 C degree of warming, every ton of emissions.

2. Achieving the 1.5 C target would not make us safe. At the same time, we are not doomed if we exceed 2.0 C. 

3. Substantial future warming is not inevitable. 

4. The largest source of uncertainty is what humans will do.

Tom's Instructions:

As you'll see, he talks about doomism and his new book, Our Fragile Moment. The central message is the same as it was in The New Climate War: There is an urgent need to take action on climate change, but we have agency and can still prevent the worst outcomes if we act quickly enough.