11 open source ways to celebrate Mother Earth: 
What could Earth Day have to do with open source you say? Well, a lot actually. Over the years, people have shared the many different open source projects out there that help us make a positive direct impact on the Earth, but also things that help us reduce, reuse, and recycle, putting less pressure on our planet’s sensitive and precious balances.
read more: Opensource.com Jen Wike Huger
Supporting Open Source.
Have you tried: Diving with Sharks?