Nuclear power is the answer and then hopefully by 2070 the world will have limitless fusion power. Nuclear takes up way less space and is currently the cheapest form of energy. Basically the major problems with it are solvable now (preventing meltdowns and disposal of the radiated materials). Did you know there haven't been any new nuclear power plants built in the US since 1978? A large part of that is due to the public's uneducated perception of the dangers of nuclear power plants.

With regards to solar and wind they are simply not very feasible now due to limitations in battery technology. Only economic incentives from the government make them feasible for private companies to build and maintain.

The "economic impact" from global warming saying it's going to cost trillions and trillions is mostly BS. Very smart people like Peter Zeihan say the world will be able to adapt to a small rise in temps relatively easily. What we really need to be worried about is a decrease in temperatures. With food shortages already being a thing now, billions will die if temps drop even several degrees.