Great Barrier Reef being polluted, too.

"The Great Barrier Reef, already under threat from global warming, is also being affected by pollutants and pesticides from the land carried into the sea by flooded rivers, satellite images show.
Pictures taken this month by Nasa and US National Oceanic and Atmospheric Administration satellites indicate that coral is being affected by the run-off at a greater rate than previously thought.
According to Australia's Commonwealth Scientific and Industrial Research Organisation (CSIRO), they show sediment creating a hazy cloud in the water over the reef, blocking out sunlight and preventing photosynthesis, the process which keeps coral alive.
Arnold Dekker of the CSIRO said: "The run-off from torrential rainfall goes into the Great Barrier Reef lagoon and straight into the ocean at speeds which were not thought to occur before we saw the images."LINK