In good company here, Ubisoft has actually done quite a lot in the field of environmental commitment, both to reduce their own carbon footprint but also support other projects, more to see here: https://news.ubisoft.com/en-us/article/6a5MCxkfp13uWmDlnuKmPU/play-green-ubisofts-commitment-to-global-carbon-neutrality
Play Green: Ubisoft’s Commitment to Global Carbon Neutrality

Ubisoft is taking action for the planet with a commitment to reduce its greenhouse gas emissions and inspire positive change.

It's heartwarming to see the games industry take its commitments seriously on such issues. I'm sure there's a lot of other companies doing great work for our planet that could be highlighted, feel free to share !