Here’s some unsettling news. The much-heralded, 2,000-foot-long floating boom that was supposed to clean up the massive Pacific Garbage Patch isn’t working. The boom, part of Ocean Cleanup, was designed to be deployed from its mothership and float in a U-shape on the surface of the ocean. The idea was that the wind and waves would push the boom faster than it pushed the floating trash, so the trash would be trapped in the middle. But now that the boom, which left San Francisco three months ago, is actually deployed, it turns out that the trash doesn’t stay trapped inside…