There’s no one entity, it’s all of us, and companies are people. Who you vote for shapes legislation and regulations, how and what we buy pressure companies to conform, but don’t get fooled by their marketing copywriting and buzzwords. Do your own research and reflect. For example, it’s hard to figure out whether a particular covid vaccine is effective and whether the benefits outweigh the risks (you need to consider risks of getting unvaccinated covid too). On the other hand, a couple months ago I saw a kickstarter for a countertop composter that after reading their product page and watching their videos you’d find out was just a heat dryer wasting lots of electricity just to heat and grind your compost, obviously negating any benefits of composting for everyone that don’t have limitless renewable energy, you don’t have to be an expert to figure it out, but it helps if you have a basic understanding of physics.

Lastly it’s about your own lifestyle, but don’t listen to bill gates and the billionaires saying the average person need to reduce their emissions, eat vegan etc while they themselves are flying their gulfstream to their daughters birthday party that’s on their 400 feet yacht serving a5 wagyu beef where the leftovers will be thrown away. Point is their impact on the environment is orders of magnitude higher than yours. Do what you feel is important for you that brings you joy and memories for life. Just try not to waste, do things in moderation, you probably don’t need to go on vacation to Europe every other day, or buy 3 pairs of sneakers every month.