Mini-Challenge: Switch Search Engines
This has to be one of the easiest things you can do to immediately benefit the planet. Ecosia is a web search engine based in Berlin, Germany, which donates 80% of its surplus income to non-profit conservationist organisations, with a focus on tree planting.
Ecosia considers itself a "social business", is CO2-neutral and is certified by B-Lab as a benefit corporation. According to Ecosia, over 113 million trees have been planted with its support as of November 2020. To see how they work, visit this page.
In order to help, all you have to do is switch from your current default search engine to Ecosia, and you'll be on your way to supporting their conservation efforts.