Happy Arbor Day! Save a tree and get some green news online.
- Celebrate Arbor Day by reading a history of the movement and a look at the current threats. (Huffington Post)
- A prominent activist exposing illegal logging was murdered by a Cambodian police officer. (Guardian)
- Tiny sharks, about the size of your hand, glow in the dark for camouflage. (Christian Science Monitor)
- You won’t believe which animal is being blamed for captive killer whale deaths. (TreeHugger)
- Is there a new invasive species to worry about in the Gulf and Southeast US? (Washington Post)