Since 2011, massive mats of golden-brown seaweed—pelagic Sargassum—have repeatedly swamped the shores of the Caribbean, West Africa, and parts of …<div><a href="https://eos.org/articles/have-we-finally-found-the-source-of-the-sargassum-surge?utm_source=flipboard&amp;utm_content=topic/science" target="_blank">Original link</a></div><div>(Originally posted by Nelson)</div>