Shoutout to the homies at the Citizen's Climate Lobby, where you can take like 5 minutes to fill in a mostly pre-written message to your reps and tell them to fucking act on climate legislation. Dunno if it's cool to post links, but this just takes you to it with no hassle (also don't trust strangers' links on the internet; you can google "citizens climate lobby write congress" and get to the same destination):

https://cclusa.org/write

If you're doing nothing else about climate change, at least do this. You've got five fucking minutes to spare to help sound the alarm bell if you're browsing a comment section. Don't be a doomer who doesn't actually do anything, otherwise you're just ruining your own day for no reason.