"Tipping points" are so-named because, after you've crossed them, you can magically disappear all of the CO2 in the atmosphere away instantly, and it's still to

"Tipping points" are so-named because, after you've crossed them, you can magically disappear all of the CO2 in the atmosphere away instantly, and it's still too late to reverse the thermodynamic momentum of the bad stuff happening. If we don't stop racing to those tipping points, we'd better get fusion working pretty fast.