Friday, January 16, 2009

ecological threats to the ocean

overfishing - Science estimates that there will be no commercially harvestable seafood left by 2048.
bottom trawling - scrapes the bottom destroying coral gardens etc.
Longliniing - incidentally catches animals and birds, including turtles and albatrosses
pollution - sewage and industrial - treated as a rubbish pit
desal plants are a new threat.
Channel deepening and dredging off coasts
CO2 emissions which concentrate carbon in the water which screws up the pH - and causes ocean acidification
garbage - especially plastics which sea creatures eat and which then kills them.

200 dead spots in the ocean.

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