I used to be optimistic that in the end the humanity would pull through and manage to keep global warming under +2°C. After covid I've lost a lot of that hope.

I used to be optimistic that in the end the humanity would pull through and manage to keep global warming under +2°C. After covid I've lost a lot of that hope. We've seen the masses unwilling to undergo the incredibly minor inconvenience of wearing a mask and getting a jab to prevent deaths of their neighbours. How can we hope to together give up our comfort to the extent it will be needed to face the challenges that lay ahead?