SierraActivist

Hawaiian monk seal in its natural habitat. Photo: NOAAConsidered the most endangered marine mammal found only in U.S. waters and one of the rarest marine mammals in the world, the Hawaiian ...

James Hemphill and Captain Don Voss, our 2012 Ocean Heroes You’ve been waiting with bated breath to find out who this year’s Ocean Heroes are, and the time has finally come to ...

Photo credit: cesarharada.com “Humanity’s plastic footprint is probably more dangerous than its carbon footprint,” said Captain Charles Moore, who, in 1997, discovered ...