An algal bloom is an explosion of growth and population of algae, which typically consist of one or a small number of phytoplankton, the foundation of the food chain. These blooms occur all over the world, even in the icy waters of the Arctic Ocean. They normally occur for a reason such as an overabundance…

ScienceDaily (Mar. 3, 2011) — Scientists working in the remotest part of Antarctica have discovered that liquid water locked deep under the continent’s coat of ice regularly thaws and refreezes to the bottom, creating as much as half the thickness of the ice in places, and actively modifying its structure. The finding, which turns common…

Deep sea mining is a relatively new mineral retrieval process that takes place on the ocean floor. Ocean mining sites are usually around large areas of polymetallic nodules or active and extinct hydrothermal vents at about 1,400 – 3,700 meters below the ocean’s surface. The vents create sulfide deposits, which contain precious metals such as…

Marine scientists are debating whether 80-plus bottlenose dolphins found dead along the U.S. Gulf Coast since January were more likely to have perished from last year’s massive oil spill or a winter cold snap. The National Oceanic and Atmospheric Administration declared “an unusual mortality event” last week when the number of dead dolphins washing up…

Vitamin D is essential for the formation, growth, and repair of bones and for normal calcium absorption and immune function. It is obtained primarily through exposure of the skin to ultraviolet radiation in sunlight, but it can also be obtained from some foods and dietary supplements. Some recent research suggests vitamin D may be able…

Nearly half of UK businesses said that they had cut business flights over the past two years and, of these, 85% said they don’t intend to return to ‘business as usual’ flying. Together, these findings suggest that future business flying will not return to pre-recessionary levels.

The Eastern cougar, a likely subspecies of the mountain lion, was officially declared extinct today by the US Fish and Wildlife Service, ending 38 years on the Endangered Species List (ESA). The cougar, which once roamed the Eastern US, had not been confirmed since 1930s, although sightings have been consistently reported up to the present-day.

In a “stunning win for the oceans”, Costco recently stepped up its Sustainable Seafood policies. Improving on voluntary changes announced last August, Costco issued its Seafood and Sustainability report agreeing to stop selling 12 red-listed varieties of fish.

The door could now be open for a “significant” number of new offshore drilling permits, Interior Secretary Ken Salazar said on Wednesday, as the administration comes under increased pressure to tackle surging world oil prices. The Interior department on Monday issued a permit for a deepwater well co-owned by Noble Energy Inc and BP, the…

[Feb. 28, 2011] The U.S. government launched what’s being billed as the largest study ever conducted of how an oil spill affects human health. The Gulf Long-Term Follow-Up Study will survey Gulf of Mexico residents who helped with the cleanup of last year’s Deepwater Horizon oil spill and follow them for at least 5 years.