PCB pollution threatens to wipe out killer whales

More than 40 years after the first initiatives were taken to ban the use of PCBs, the chemical pollutants remain a deadly threat to animals at the top of the food chain. A new study shows that the current concentrations of PCBs can lead to the disappearance of half of the world’s populations of killer whales from the most heavily contaminated areas within a period of just 30-50 years.

Tsunami sweeps away homes as power earthquakes rock Indonesia

Powerful earthquakes jolted the Indonesian island of Sulawesi on Friday and a triggered a tsunami that an official said swept away houses. Indonesia had declared a tsunami warning after the strongest quake, which registered magnitude 7.5, but lifted it about half an hour later

Inventory of Municipal Wastewater Discharges to California Coastal Waters

417 billion gallons of treated municipal wastewater were discharged from treatment plants at fifty-seven locations directly into California coastal waters. Engineering feasibility and financial considerations will be significant factors in determining the viability of using existing coastal wastewater discharges for increasing recycled water production.

Microplastics found deep in sand where turtles nest

Scientists found an average of 5,300 particles of plastic per cubic metre at depths of 60cm (2ft) on beaches in Cyprus used by green turtles and loggerheads. These beaches in Cyprus are located far from industrial practices and aren’t visited by large numbers of people. The findings support the theory that beaches act as a “sink” for marine micro plastics.