Tuesday was Earth Day, making this whole week Earth Week.
For people in southern California, Sprinkles cupcake is donating proceeds of their vanilla cupcakes to local tree planting and environmental organizations. See here for details.
Additionally, I found out UC Berkeley also has a whole week of events. It’s not too late to check out the Transportation and Energy Faire or the Creativity and Community Celebration! 
I’m sure there’s plenty of other stuff going on — these are just the couple I managed to come across.
Remember, reduce, reuse, and recycle. =p
