Overfished and under-protected: Oceans on the brink of catastrophic collapse | 21st Century Learning and Teaching | Scoop.it
From edition.cnn.com - March 23, 2013 1:17 PM
As the human footprint has spread, the remaining wildernesses on our planet have retreated. However, dive just a few meters below the ocean surface and you will enter a world where humans very rarely venture.

Via Terheck