How big is the CO₂ bucket for 1.5°C?

Well, the bucket is about to overflow in a few short years, unless we:
1. Turn off the tap (urgently)
2. Put a hole in the bottom to remove CO₂ (negative emissions)#COP25 #CarbonBudget @FutureEarth @gcarbonproject https://t.co/ycYcuFSPdF pic.twitter.com/o7JwZt7GlX

— Glen Peters (@Peters_Glen) December 13, 2019