- Currently, the weight of all life on Earth is ~1.2T tons. We’ve now built about the same amount of stuff. We now live in a world where we’ve built more than the nature was able to.
- Urbanization may be in retreat. As the wealthiest retreat in places like New York City, a loss of 5% of them could cost the city about $1B in taxes, making cities less sustainable.
Pretending Not To Panic 