You've chained together several assumptions I don't think are correct. > Sooner or later our over-dependence on fossil fuels will have to end. This could be i

You've chained together several assumptions I don't think are correct. > Sooner or later our over-dependence on fossil fuels will have to end. This could be in a very long time. > While renewables will help us, our energy demands will likely have to decrease significantly. I doubt we will respond to climate changes if this is a requirement. More likely we respond with carbon sequestration, climate engineering, capturing, and clearning fossil fuels. > Since most of computer science is very energy intensive, will the use of software engineering/ technology decrease? This amount of energy computing requires compared to things like driving, public transit, flying, a/c, etc... is so small (2%) that if we don't have the energy to compute we're living in a subsistence style world. And there is no way the majority of the population will decide to live like that to avoid climate change.