The Ocean Cleanup developed technology to catch trash in rivers before it flows into the ocean. During a recent storm in L.A., it was wildly successful.

When heavy rain fell in Los Angeles last November, trash on city streets started washing into Ballona Creek, a 9-mile-long river that flows to Santa Monica Bay. Normally, a storm coming after months of dry weather would push thousands of pounds of debris and litter, including plastic bottles and bags, into the ocean. But a month before the...

Continue Reading In L.A., this sleek barrier kept 35,000 pounds of trash out of the ocean