Excellent & timely tweet. A number I like to highlight to put "negative emissions" in perspective: Based on
@IPCC_CH SR15 scenarios (
ipcc.ch/sr15/), we are speaking here of at most 10% of present-day CO2 emissions. Only solution for the remaining 90% is going to zero.
Tl;dr on negative emissions:
🔬 Scientists say we “need” them because every bit of warming avoided matters.
🛑 This is not an excuse to delay cutting actual emissions as fast as possible.
🌲Trees are great, but have limits, risks, & drawbacks.
🏭 BECCS, DACC, etc:👇🏻