The alarming part is rate. Earth warmth comes from CO2 blanket, we can't suck it from atmosphere, we hardly can reduce CO2 production worldwide. Also his "bes

The alarming part is rate. Earth warmth comes from CO2 blanket, we can't suck it from atmosphere, we hardly can reduce CO2 production worldwide. Also his "best case scenario" is humanity wiped from Earth ten years ago, not base case for me. "Optimistic scenario" is if world acted on current policies. And "current path" is denial (4°C–5°C raise). https://ourworldindata.org/future-emissions https://ourworldindata.org/future-emissions