Block reward is only changed on halvenings. Difficulty retargeting changes to try to keep blocks and therefore bitcoin emissions per unit of time (10 minutes) t

Block reward is only changed on halvenings. Difficulty retargeting changes to try to keep blocks and therefore bitcoin emissions per unit of time (10 minutes) the same. The issue is that there is now too much electricity & therefore carbon emissions being spent on security the bitcoin blockchain. If the bitcoin community could adjust this down for slightly lower 51% attack defense they might be able to avoid the pressure from outside groups. But the bitcoin community has shown it's self unable to make changes or establish any consensus outside of what is already believed.