Dead zone areas in the region are not new phenomena, but in 2019, the area affected by hypoxia, a condition of low oxygen that can no longer support any form of life has grown much larger than expected, and the cause is likely to be human activities.
This year, researchers found an astonishingly large, 3360 square kilometre dead zone in the Gulf of Mexico, where the Mississippi River meats the Atlantic Ocean. The zone, which is larger than Luxembourg, is the second largest ever detected in the region by marine biologists.
Although low-oxygen water conditions can arise due to natural causes as well, over recent decades, human activities have rendered the phenomenon much worse. The changes in the Gulf are caused by the Mississippi River, which, as the country’s longest river, almost bisects the United States completely as it flows north to south through ten states.
During its journey, the river picks up tremendous amounts of agricultural waste, particularly phosphorus and nitrogen, which have a devastating effect on marine life as they cause eutrophication and hypoxic conditions.
Henderson Island, a remote Pacific island that belongs to New Zealand, is a UNESCO World Heritage Site – yet six tonnes of plastic waste was collected there in two weeks.
Based on a study spanning more than 20 years, researchers of the French Research Institute for Exploitation of the Sea (Ifremer) believe that the Mediterranean Sea is the most polluted sea in Europe.
Water pollution in the region is becoming increasingly severe. Tunisia is particularly in big trouble.
Fishermen in Greece, who agree to collect the waste caught in their nets and deliver it for recycling, get 200 euro a month.
In a natural environment inundated with artificial objects, the delicate balance of finely tuned interconnections and highly functional systems is upset. This new asynchrony, this disharmony is highlighted in the performance of two young synchronised swimmers intended as a warning of the dangers of plastic pollution.
Wastewater is more damaging to coral than the warming of the seas, a new American study has shown.
According to a new study by the US National Oceanic and Atmospheric Administration, up to 17,000 litres of oil may be spilt in the water of the Gulf of Mexico due to a leak on an oil platform that has started 15 years ago.
Every single piece of plastic that has ever been made is still with us on the planet, and humanity adds more than 300 million tonnes of freshly produced plastic to the total amount each year.
Scientists have studied the cetaceans washed ashore over the last twenty years. The saddest case was that of a 5.3 metre young sperm whale found on the island of Mykonos: it had swallowed 135 pieces of plastic weighing 3.2 kg in total.
Environmentalists removed more than 40 tonnes of plastic waste from the Pacific Ocean between Hawaii and California, says a CNN news report.