

Speed up by far. All the focus will be on producing enough stuff to replace whatever the enemy blows up. Any invention in the renewable department will only come as a result of having used all available fuel already.
The world population still increased during the previous world wars so unless we have a major nuclear exchange that probably won’t change. If we do have a major nuclear war global warming is suddenly not a big deal anyway.
You’re in a situation where you have to cut spending and raise taxes while the left promises to not cut spending and the right promises to not raise taxes. It’s an issue the last handful of administrations have not been able to deal with…
It’s going to be painful. Hopefully not a drawn out depression like the 1930s.