David Knuffke Is an Educator Based on Long Island.

You can learn more about his work here.

I do feel rather strongly that the rock cycle is typically under-appreciated.   zombisexual: erta_ale_g10437 (by volcanodiscovery)

I do feel rather strongly that the rock cycle is typically under-appreciated.  

zombisexual:

erta_ale_g10437 (by volcanodiscovery)

The Environment & You

Who Eats Who