Tim O’Higgins is a marine biologist in Scotland who has focused on those vital ecostystem services provided by estuarine and coastal waters.

People living in Arctic areas can be more sensitive to pollutants due to their genetics , says researcher Arja Rautio at the Centre for Arctic Medicine in the University of Oulu , Finland.

In 2010, nearly two tons of fish was found dead due to lack of oxygen on the coastal line of the Romanian Black Sea.  Oxygen depletion , or hypoxia , occurring in the water is thought to be responsible.