Hot take on HN, but techno-optimism sounds so stupid when it comes to climate change... You can't engineer macro climate/ecology, since capital has no interest in human and it's surrounding environment balanced cohabitation.
The forest where the community hikes has no value unless the trees are turned into paper. All to say, Capital at large seeks out the profit. Until climate change effects the profit considerably, mitigation will be the path less traveled. The only real way to approach this problem is to reduce consumption across the board which as you might guess, isn't profitable.
my semi-superstitious take is that the race to achieve ai is grounded in needing something that knows whats going on and is able to make decisions aligned to generational time horizons. whether that works out or not time will tell, but i get the sense a "good enough" ai is probably our best shot at saving us from ourselves. it's clear we can't do that on our own.