The area of the ocean's oxygen-free dead zone has tripled - a long run that would trigger the extinction of marine life!!!

Scientists have warned that the area of nearly oxygen-free "dead zones" in the oceans has tripled since 1950, and the number of near-oxygen zones along the coast has increased ninefold, Singapore's Union Morning Post reported.
Since the vast majority of marine life cannot survive in these dead zones, this will lead to the extinction of marine life, with serious consequences for hundreds of millions of people living by the sea.
data map: "Dead Zone" refers to near-oxygen-free areas in the ocean.
each spring, the Gulf of Mexico forms one of the largest "dead zones." A study published in the journal Science by the
(photo: NATIONAL Oceanic and Atmospheric Administration.com) says climate change caused by the use of fossil fuels is causing ocean temperatures to rise;
the flow of fertilizer and sewage from land into the sea, and many dead zones appear in coastal waters.
report that naturally occurring low-oxygen regions exist in the oceans because of the Earth's natural transfers affecting ocean currents.
but since 1950, the area of such dead areas has increased by millions of square kilometres, roughly equivalent to the entire European Union. The number of marine death zones along the
has also increased from less than 50 in 1950 to at least 500 today.
the ocean's overall oxygen content has also continued to decline, by 2 per cent since 1950, equivalent to 77 billion metric tons.
: Photographer Caroline Power captured the stunning "sea of plastic waste" in the waters just 15 miles from the Honduran island of Roatan, nearly five miles from the contaminated area.
Oceans is a source of food for more than 500 million people worldwide and provides jobs for 350 million people.
report that a lack of oxygen in seawater affects the growth and reproduction of marine life and makes them more susceptible to disease.
less ocean oxygen, it may also exacerbate climate warming.
marine microorganisms that live in low-oxygen environments produce large amounts of nitrous oxide, which is about 300 times stronger than carbon dioxide.
the study was carried out by an international working group established by the INtergovernmental Oceanographic Commission of UNESCO in 2016. "The major extinction events in Earth's history are related to warming and lack of oxygen in the oceans," said Brett Fort, an American researcher leading the study at the
.
at the current trend, we are heading in that direction.
", Brettford also said: "This is a problem we can solve."
, for example, oxygen levels in the Chesapeake Bay and the Thames in the United Kingdom have recovered after improved local agricultural operations and sewage treatment.
Source: ChinaNet-China Network.