Ask HN: What's the best way to fight climate change as a Software Engineer?

Eat more chickens and less cows.

Source: Before the flood https://www.youtube.com/watch?v=codqzJ4onGc

There's plenty of software engineering roles available to in the energy efficiency industry and more to come.

Use your skills to contribute to the renewable energy industry.

Turn off your computer and all the computers you administer.