Earlier quoted context omitted.
Maybe the problems of today will be solved with the technology of tomorrow. As far as nuclear bombs, we don't really seem to be using them much anymore. They are just trump cards in the mutual assured destruction game.
Any technical solutions to the global issues we face will be thwarted by sociological factors due to our immaturity as a species. Climate, for example, requires cooperation on a global level and all populous industrialised countries must participate. China, for example, may decide to not participate for any number of economic or political reasons. What then? They would be further destroying the planet. Should we forc…
Somebody could come up with something tomorrow. Maybe a bacteria that can populate the ocean, which precipitates carbon from CO2 in the air, and drops little pellets to the bottom. Probably not a real practical solution, or even a good idea, but it shows how things could rapidly change if the right tech comes along. They wouldn't need to get everyone together - just a petri dish thrown into the ocean.
We are still thinking of solving today's problems with today's technology, which I agree is futile to get everyone on the same page.