Caribbean-Wide, Negative Emissions Solution to Sargassum spp. Low-Cost Collection Device and Sustainable Disposal Method

Sargassum spp. blooms exacerbated by climate change and agricultural runoff are inundating Caribbean beaches, emitting toxic fumes greenhouse gases through decomposition. This hurts tourism, artisanal fishing, shore-based industry, human health, standards-of-living, coastal ecology, the global climate. Barriers, collection machinery, valorization have been unable to provide sufficient, sustainable, or widespread relief. article presents a total management system that is effective, low-impact, economically scalable across Caribbean. Littoral Collection Modules (LCMs), attached fishing boats, collect in nets which brought barge. When full, barge towed deep ocean where pumped ~150–200 m depth, whereafter it continues sinking (Sargassum Ocean Sequestration of Carbon; “SOS Carbon”). Costing negative emissions calculations for this show cleanup costs <$1/m3 reduction potential up 1.356 ? 3.029 tCO2e/dmt Sargassum. COVID-19 decimated adding pressures indebtedness natural disasters facing region. The Carbon strategy” could help “build back better” establishing industry builds resilience against flight shame (“flygskam”). Employing fishermen operate LCMs achieves socioeconomic goals while increasing avoiding landfilling sustainable development goals.