Nereus Research Associate Colette Wabnitz (University of British Columbia) wrote a blog about the Sargassum mass bloom event that occurred in 2018, and how it impacted countries throughout the Caribbean. She discusses the origins of Sargassum, factors that trigger mass blooms, and what can be done about it.
Marine heatwaves can cause irreversible ecosystem damage and their frequency has doubled since 1982. If average global temperatures rise 3.5°C, we’ll see a jump from just fewer than four marine heat waves a year on average to a startling 122.
Heatwaves are occurring not only on the land but also in the sea, notably “The Blob” in Northeast Pacific and a shorter heatwave on Australia’s west coast in 2010 and 2011.