Enroll In A Sustainability Course:
Coursera offers a large variety of courses on sustainability, sustainable fashion, renewable energy, climate change, and more!
MilkWood has a good amount of articles and videos that can give you tips about permaculture and other garden related topics!
Take a free, self paced class on EDX.org, on virtually any environmentally related topic you could imagine.
Listen To A Sustainability-Focused Podcast:
A Sustainable Mind
The Eco Warrior Princess Podcast
Start Some Eco-Friendly Projects:
Pick up trash at a local park
Make sure to always wear gloves.
Start a garden
Do some research to start a garden, or grow veggies/ herbs in pots on your window sill.
Purge your closet
To donate clothes you don’t need post-quarantine.