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.

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.

In pictures: Millions mark World Cleanup Day 2018

Cleanups were organised in 152 countries around the world, with results from just 75 countries on Saturday night already confirming the participation of more than 14.5 million people. Full results of the day, including the amount of waste collected, were set to be released on Sunday.