In the realm of political donations, municipal politics is so often forgotten about, but is in control of some of the lowest hanging fruit for carbon reduction in cities.

Almost the entirety of carbon emissions in cities comes from 1) home heating and 2) transportation, both of which could be significantly impacted by city policy from environmentalist municipal politicians.

For example:

* separated bike lanes (incredibly cheap in the grand scheme of things)

* pedestrianization of public spaces

* legalizing relatively denser apartment buildings everywhere.

* public transit improvements

All work to take CO2 emitting cars off the road

Political movement toward bans on gas for home heating (already occurring in many places) a further way to reduce CO2 emissions.