So I am extremely conscious of what the effects of climate change will mean for me, and for anyone living similarly close to the sea and at sea-level.

Which is exactly why I don't think it matters what a bunch of stupendously wealthy capitalists can come up with. We need widespread systematic change, and it needs to come from the people, not the so-called elite. As has been shown before, the ideas and initiatives of the elite are very often explicitly harmful to the general population.