sticky clumps of oil that sometimes wash up on shore. They’re often leftover from oil spills but can also come from natural oil seeps, places where petroleum slowly rises from the ocean floor.

Philippe Maréchal shows a sargassum bloom, which has affected parts of the Caribbean since 2011 | Earth And The Environment ...

The carcass, reduced to a bony skeleton, measured about 6.5 feet and was surrounded by crawling creatures that fed on its ...

Tar balls are clumps of oil that form a mass around debris in the water ... "However, natural seepage from the ocean floor is also considered a source." To report a pollution spill, the Coast Guard ...

Tar balls have popped up across South Florida, including in Indian River County over the weekend. Have you seen them on the beach?

The world’s largest and oldest iceberg, A23a, has come to a halt near South Georgia Island in the South Atlantic Ocean, ...