A brown macroalgae native to the Atlantic’s Sargasso Sea is increasingly a menace to coastal ecosystems and communities across the Gulf of Mexico, ever since mats of the normally beneficial seaweed (known as sargassum) exploded in numbers in 2011. This is the backdrop for Carbonwave, which recently raised $5 million to put the hulking algae … Continue reading Startup says the seaweed blobbing toward Florida has a silver lining