We don't seem to like this planet we've inherited, do we? We just have to keep changing it, and tinkering with it, and ripping its surface layers apart to get at the wealth they contain (which, of course, we assume to be infinite). All this frantic activity generates heat though, and heat leads to the the fragile layer that we inhabit becoming unstable. Once it becomes unstable enough (ie. within the next few generations) it won't be habitable any more - then our species will become extinct.

I don't believe that there are ANY technical fixes for this situation.

We've got to radically re-think the way that we relate to the biosphere. Not a lot of time to do this in, though - we seem to be accelerating along the path towards melt-down whilst generating even more hot air.