Turquoise Tendrils

A natural-color image of what appears to be a phytoplankton bloom off the coast of Tunisia. It is also possible that the discoloration is from sediment.Most blooms are benign, but some can become harmful when they consume too much of the oxygen in the water or when the phytoplankton species are toxic.

Preparing for Tsunami Hazards on Washington’s Pacific Coast

Conventional wisdom about tsunamis says that if you feel an earthquake’s shaking, move to high ground immediately. But what if the area has no natural high ground? Many coastal communities in the Northwest are built on low-lying coastal spits of sand.

Dead zones may threaten coral reefs worldwide

Dead zones affect dozens of coral reefs around the world and threaten hundreds more according to a new study. Watching a massive coral reef die-off on the Caribbean coast of Panama, they suspected it was caused by a dead zone – a low-oxygen area that snuffs out marine life – rather than by ocean warming or acidification.

From entanglement to invasions of alien species: the harm caused by marine litter

Marine litter is a threat to the marine ecosystem, human health and economic activities. A new European Commission Joint Research Centre (JRC) report sheds light on the many effects of litter in our oceans, and highlights the severity and scale of the issue. The report confirms that plastic items have the highest direct and indirect damaging impact.