I have a crazy yet simple way to fight climate change and GHG emissions:
People should go to bed shortly after the sun goes down, and wake up when the sun rises. You know, like humans did for 99.99999% of human history prior to the invention of the lightbulb.
When I was younger I used to go fishing on a remote lake in the middle of nowhere. You had to fly by small pontoon plane to get to this lake, not even road accessible. Well, obviously there was no hydro to the cabin we stayed in. We relied on gas-powered generator to keep the fridge running. No flush toilet, just an outhouse. At night we shut the generator off to save gas. In the summer sundown was 9pm-ish, so lights out. We woke up at dawn and went fishing. It was kind of neat. There was nothing to do at night anyways, no cable TV, no internet, no cell phones, maybe a game of cards by lantern.