Global

Oxygen Crisis in World’s Oceans

In the past 50 years, the amount of water in the open ocean with zero oxygen has gone up more than fourfold. In coastal water bodies, including estuaries and seas, low-oxygen sites have increased more than 10-fold since 1950. Scientists expect oxygen to continue dropping even outside these zones as Earth warms.

To halt the decline, the world needs to rein in both climate change and nutrient pollution, an international team of scientists including Lisa Levin, a biological oceanographer at Scripps Institution of Oceanography at the University of California San Diego, asserted in a new paper published Jan. 4 in Science.

“Oxygen is fundamental to life in the oceans,” said Denise Breitburg, lead author and marine ecologist with the Smithsonian Environmental Research Center. “The decline in ocean oxygen ranks among the most serious effects of human activities on the Earth’s environment.”

“It’s a tremendous loss to all the support services that rely on recreation and tourism, hotels and restaurants and taxi drivers and everything else,” said Levin. “The reverberations of unhealthy ecosystems in the ocean can be extensive.”

The study came from a team of scientists from GO2NE (Global Ocean Oxygen Network), a new working group created in 2016 […]

More about the world’s oceans:

Want to combat climate change? Take care of our oceans

Plastic degrading in the oceans release chemicals into the water

Dr. Sylvia Earle’s Wish? Protect our Oceans

Update: Remember the Young Man With a Plan to Rid Oceans of Plastic?

Recent Posts

LA River restoration connects us back to ‘the life force of our city’

Los Angeles residents at a section of the Los Angeles River cleanup in Los Angeles,…

1 day ago

LAist: New study raises questions about heavy metals in fire retardants

Over the past decade, about 67 million gallons of fire retardant have been dropped on…

1 day ago

Meadow and watershed restoration in the Golden Trout Wilderness

Photo: Golden Trout Wilderness Seeking blue, seeing gold The Kern Plateau features a chain of…

2 days ago

First sighting of salmon in 100 years marks key milestone for California dam removal

For the first time in more than a century, a salmon was observed swimming through Klamath…

1 week ago

Developing state water roadmaps is essential

New turnout facility from the California Aqueduct on Monday, Oct. 23, 2023. Officials say the…

1 week ago

Migration Matters: Breaking Down Barriers to Migration

Over the past century, humans have constructed major transportation infrastructure like highways, bridges, railroads, and…

3 weeks ago