Mark Keller's Groups (2)

One Day on Earth - Germany 12.12.12

74 members Latest Activity: Jan 23, 2013

Regional - Europe - Germany. A group for members participating in One Day on Earth from Germany.

Environment & Nature

82 members Latest Activity: Jan 11, 2013 Causes - Environment & Nature A group for members committed to documenting the environment on 11.11.11.