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"Major extinction events in Earth's history have been associated with warm climates and oxygen-deficient oceans," the analysis published in the journal Science stated.
"Under the current trajectory that is where we would be headed. But the consequences to humans of staying on that trajectory are so dire that it is hard to imagine we would go quite that far down that path," Denise Breitburg, an author of the study and researcher at the Smithsonian Environmental Research Center in the U.S., told the Guardian.
Human activities are largely responsible for the growth of ocean dead zones. Climate change, caused by fossil fuel emissions, is behind the large-scale removal of oxygen in open waters. Open oceans have naturally low oxygen areas that typically lay west of continents due to the Earth's rotation.
Coastal zones, which provide jobs to 350 million people, are now home to at least 500 known dead zones, though that number could be much higher. According to the study, these areas have increased by an area roughly the size of the European Union since 1950, when there were 50 reported around the world.
This global map indicates coastal sites where industrial activity, including large-scale and chemical-intense farming, are suffocating ocean life. International Oceanographic Commission / Smithsonian Environmental Research Center
In coastal regions, algae blooms are the main culprits behind dead zones. Manure, sewage and fertilizers create these blooms. When the algae decomposes it sucks oxygen out of the water.
"This is a problem we can solve," Breitburg told the Guardian, pointing to the River Thames in the UK and the Chesapeake Bay in the U.S., where improved sewage and agricultural practices helped remove dead zones.
"Right now, the increasing expansion of coastal dead zones and decline in open ocean oxygen are not priority problems for governments around the world. Unfortunately, it will take severe and persistent mortality of fisheries for the seriousness of low oxygen to be realized," Robert Diaz, a professor at the Virginia institute of Marine Science who reviewed the study, told the Guardian.
"No other variable of such ecological importance to coastal ecosystems has changed so drastically in such a short period of time from human activities as dissolved oxygen," Diaz said.
EcoWatch Daily Newsletter
By George Citroner
The Office of Disease Prevention and Health Promotion and the World Health Organization currently recommend either 150 minutes of moderate intensity exercise (walking, gardening, doing household chores) or 75 minutes of vigorous aerobic exercise (running, cycling, swimming) every week.
But there's little research looking at the benefits, if any, of exercising less than the 75 minute minimum.
It seems the reality of the climate crisis is too much for the Federal Reserve to ignore anymore.
For 21 years, Doug Distaso served his country in the United States Air Force.
He commanded joint aviation, maintenance, and support personnel globally and served as a primary legislative affairs lead for two U.S. Special Operations Command leaders.
But after an Air Force plane accident left him with a traumatic brain injury, post-traumatic stress disorder (PTSD), and chronic pain, Distaso was placed on more than a dozen prescription medications by doctors at the U.S. Department of Veterans Affairs (VA).
By Bailey Hopp
If you had to choose a diamond for your engagement ring from below or above the ground, which would you pick … and why would you pick it? This is the main question consumers are facing when picking out their diamond engagement ring today. With a dramatic increase in demand for conflict-free lab-grown diamonds, the diamond industry is shifting right before our eyes.
The scourge of plastic waste that washes up on once-pristine beaches and finds its way into the middle of the ocean often starts on land, is dumped in rivers and canals, and gets carried out to sea. At the current rate, marine plastic is predicted to outweigh all the fish in the seas by 2050, according to Silicon Canals.
By Julia Conley
Joined by Rep. Alexandria Ocasio-Cortez Friday night, Sen. Bernie Sanders held the largest rally of any 2020 Democratic presidential candidate to date in Iowa, drawing more than 2,400 people to Iowa Western Community College in Council Bluffs.