Pollution, ships harm Fla. coral reefs
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Just below the sea's surface off Florida's southeast coast lies a virtual gold mine. It's not sunken treasure or some Spanish galleon but instead nature's bounty, rows of coral reefs that generate billions of dollars a year in tourism spending.
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The tsunami that took a heavy toll in human life also battered Indian Ocean coral reefs that already were in distress from pollution and global warming, possibly causing damage that will require decades to recover, experts say.
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About 70 percent of the world's coral reefs have been wrecked or are at risk from human activities but some are showing surprising resilience to global warming, a report said on Monday.
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A new network of sensors will detail how ecological threats to the waterway affect the seacoast.
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Science & environment: Fishing, climate change and pollution have left an indelible mark on virtually all of the world's oceans
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Scientists are tracking a 400 square-mile bloom of red tide algae lurking off the Gulf Coast, pointing to it as the likely cause of a mass fish kill and several dolphin deaths at the tip of the Florida peninsula.
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Scientists have issued their strongest warning so far this year that unusually warm Caribbean Sea temperatures threaten coral reefs that suffered widespread damage last year in record-setting heat.
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Some coral reefs are proving surprisingly resilient to global warming because of heat-tolerant algae that live with them.
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The 225m-long `Selendang Ayu&#39; ran aground near the Aleutian islands in the Bering Sea. The environment is at threat, but bad weather is preventing a clean-up.
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By Geoffrey Lean  Take one of the world's greatest waste problems, and turn it into one of the planet's most precious habitats. It seems a classic green win-win. But dumping used tyres in the sea to make artificial coral reefs has proved to be an environmental disaster.
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Scientists attempt to pair coral with algae that is better able to withstand rising sea temperatures.
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Scientists are embarking on a project which will explore how global warming is devastating one of the world's most diverse ecosystems, coral reefs.
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FORT LAUDERDALE, Fla. _ Marine biologists and U.S. military divers are trying to turn an environmental mess off Fort Lauderdale's coast into an earth-friendly source of fuel.  Their target: an ill-conceived reef of rubber tires sunk into the ocean in the 1970s.
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No one doubts that human-induced climate change has been killing corals across the globe. The question is whether humans can help save them before the devastation is complete.
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A new map of human impacts on marine ecosystems shows that more than half of the world's ocean area has already been profoundly affected by humans -- and just four percent is still in pristine condition.
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Science & environment: The majority of the world's coral reefs are in danger of being killed off by rising levels of greenhouse gases
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Authorities were trying to determine the origin of a fuel spill that could threaten coral reefs off Puerto Rico, the government said Thursday.