We recently covered the increasing tonnage of sargassum and the effects it has had on coastlines and surfers in the tropical Atlantic and Caribbean. Miami spends $9 million a year scraping the toxic, rotten-egg-gas belching stuff off its beaches. Tulum’s restaurants are reporting a 60 per cent drop in sales. A Surfer correspondent was face-planting on the stuff at the end section of his local point break. It’s easy to file all of that under “unlucky geography” — an unfortunate current system dumping a record 37-plus million tons of seaweed on one unlucky stretch of coastline. Yet research by the University of South Florida’s College of Marine Science, working with NOAA’s satellite research centre (STAR) and researchers from Columbia’s Lamont-Doherty Earth Observatory, USC, and San Francisco State, suggests we may be zooming in too much on sargassum.…