Sadly, big companies truly do not care. I was part of a net-zero project at my company (major polluter/CO2 emitter) and it is getting cut right now. I joined in hopes of helping fix it, but I simply can’t fight endless bureaucracy and rich people.
I can only speak for my project, but it’s not even just the CEO/board in my case. Mid-levels burned so much money that the project became completely infeasible (ie. negative return and scaling would make it worse).