I feel like political/advocacy/regulatory should be a category. Organizations like Vote Solar, SEIA, Mission:Data, Sierra Club, etc. have most impact fighting climate change because the policies they push through have huge industry-wide consequences.

Also, for energy, how wide do you want to cast the net? Solar and wind generation is now more cost effective than fossil generation, so traditional utilities and utility vendors are now doing huge climate-change fighting efforts, just because it's cheaper. For example, GE has a solar division that is developing huge commercial projects that offset a fuck ton of carbon. Should GE be on the list?

I worry that this list is giving the impression that fighting climate chance is a selfless endeavor, when nowadays much of the carbon offset work (especially in energy) is done by established entities because it's simply cheaper and in their self interest.

Also, what about governments? Countries, states, cities, and regulators are passing more and more 100% carbon free mandates. Those are vastly more impactful that anything else on this list. Shouldn't they be included on the list?

Finally, a search or full list to Ctrl+F would be nice so I don't have to click through multiple categories to see if a company is included.

Thanks very much for the effort to put this list together, and I wish you the best of luck!