Firstly don't do misanthropy (yes, like I sometimes do). George will explain why:
"Tough as this fight may be, improbable as success might seem, we cannot afford to surrender."So, no misanthropy. I'm a bit bipolar so I end up doing it anyway. That doesn't excuse it.
Secondly, implement a Green New Deal. That's pretty obvious, although the UK government doesn't seem to think so.
Thirdly, cap the rich.
Fourthly, don't have more than two children.