Within sight of northern Germany's windswept beaches, specialized clearance teams have been trawling the seafloor for the kind of catch that fishermen in these parts usually avoiddiscarded naval mines, torpedoes, stacks of artillery shells, and heavy aerial bombs, all of which have been rusting away for nearly 80 years. For much of September and October 2024, underwater vehicles, fitted with cameras, powerful lights, and sensors, have been hunting for World War II"era explosives purposefully sunk in this region of the Baltic Sea. Tons upon tons of German munitions were hastily dumped at sea under orders from the Allied powers at the end of World War II, who sought to dispose of the Nazis' arsenal. The clearance work last year was part of a first-of-its-kind project to explore ways to clear up this toxic legacy of war. "Conventional munitions are carcinogenic, and the chemical munitions are mutagenic, and also they disrupt enzymes and whatnot"so they are definitely affecting organisms," says Jacek Bedowski, a leading expert on underwater munitions dumps. The next stage of the pilot project, also now underway, is building a floating munitions-disposal facility that could incinerate the aging explosives near the dump sites. That would eliminate the need to bring the ordnance above water ... and ship it overland. Longer term, the dream is to have unmanned underwater vehicles map, scan, and magnetically image the seabed to get a sense of what lies where.