Not sure there is a man made solution to the problem. As we descended into SXM last week you could see for miles all over the open ocean ribbons of seaweed. Unless you can change ocean currents I don't see a practical solution. They are using 2 different ways to remove it from the beach. First one is using a tractor with a rake this method makes piles of sand and seaweed that have to spread out. Second method is a tractor pulling a metal conveyer that removes the seaweed from the sand and collects to to be dumped by the big rock. This is a much better looking beach although not perfect. What I don't get is that they use this machine on the beach by Boo Boo Jams that hardly anyone uses.