Agence France-Presse: Nearly every corner of the world’s oceans have been damaged in some way by human activity and some 41 percent of those waters are heavily affected, a study released Thursday has found. Coastal areas are polluted by runoff. Oyster beds and fisheries are disappearing. Floating islands of trash the size of small states clutter what used to be open water. Birds and whales are struck by ships which leave a trail of oil and waste in their wakes. But the biggest damage is from climate …