2-How humanity should allocate our limited and finite resources.
I do not think we have finite resources to address this situation. Recession/ No recession, money is made and we can spend as much as we want to work on a solution towards this problem (if we accept that it is a problem and want to act)
We definitely have to buy-time and change the attitude of people. We need to encourage people to reduce wastes and recycle more. I don't quite know how wise it is to pump CO2 underground.
But yes, we should inculcate "greener" habits and educate others around us, especially the elder generation along with the younger one to mitigate the effects of our day-today activities....