Scientists Find Strange Rings Surrounding 500,000 Seafloor Barrels—And No One Knows Why

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00:00Scientists find strange rings surrounding 500,000 seafloor barrels.

00:05And no one knows why.

00:07Off the Southern California coast, leaking toxic barrels, including DDT, are now surrounded

00:13by glowing rings formed as alkaline waste reacts with magnesium, creating bursite.

00:22From the 1930s to the 1970s, chemical waste was dumped at 14 California sites with government

00:28approval, relying on dilution to handle pollution.

00:32Around 500,000 toxic barrels still leak chemicals in California.

00:36UC San Diego researchers found mysterious halos around them, highlighting human disregard

00:41for ocean ecosystems in a PNAS nexus study.

00:46Researchers found the halos were caused by alkaline caustic waste, creating extreme environments

00:51like hydrothermal vents.

00:53Co-author Johanna Gutleben noted that much more than DDT was likely dumped, but only

00:59what is searched for is found.

01:04Until now, alkaline waste hadn't been considered, so researchers must look for other materials.

01:10The halos formed concrete-thick crusts, forcing the ROV to use its robotic arm instead of coring

01:16to collect samples.

01:18Experts showed leaked alkaline waste reacted with seawater magnesium to form bursite, while

01:23the halo's outer edge formed calcium carbonate where it met the water.

01:27Paul Jensen noted 50-plus years later, barrels still impact microbes.

01:33Cleanup is tricky, as lifting them spreads contamination.

01:36Studying microbes may help break down the chemicals naturally.

01:43Researchers recommend mapping seafloor halo signatures, prioritizing in-place containment

01:48and long-term monitoring rather than lifting barrels, whose numbers and contents remain

01:52largely unknown.

01:54The issue highlights the danger of past and ongoing ocean pollution.

01:58Here we go.

01:59Now, what is the plan of approximation?

02:00This is a�-the.

02:10This is a plan of arithmetic.

02:15The human quality is now on the surface of the form of the sun.