Within a single generation, human activity has severely damaged almost every aspect of our global oceans.
That's the finding of a new World Wildlife Fund study, which revealed that marine populations have declined 49 percent between 1970 and 2012.
"The picture is now clearer than ever: humanity is collectively mismanaging the ocean to the brink of collapse," wrote Marco Lambertini, Director General of WWF International, in the report. Over-exploiting fisheries, damaging marine habitat, and global warming have all contributed to the degradation of the world's oceans.
The study predicted the possibility of losing all coral reefs by 2050 due to warming oceans and ocean acidification. This is not only a huge danger to a quarter of all marine species that live in coral reefs, but also to the communities that rely on reefs for economic and social benefits.
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