Deep-sea trawling ravaging oceans

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Fishermen who rake giant nets across the ocean floor to maximize their catch are destroying unique and unexplored ecological systems, according to a U.N. draft environmental report made public Wednesday.

Just over half of the underwater mountain and coral ecosystems in the world are located beyond national boundaries, leaving them unregulated and vulnerable to the damaging practice known as bottom trawling, the report said.

Trawlers