--- title: Seaweed Generation AlgaRay: The 200 Best Inventions of 2023 description: Find out why Seaweed Generation AlgaRay is one of the best inventions of 2023 canonical: https://time.com/collections/best-inventions-2023/6324138/seaweed-generation-algaray/ article:content_tier: free article:published_time: 2023-10-24T11:00:35.000Z article:modified_time: 2026-03-31T05:10:49.759Z og:title: Seaweed Generation AlgaRay: The 200 Best Inventions of 2023 og:description: Find out why Seaweed Generation AlgaRay made this year's list og:url: https://time.com/collections/best-inventions-2023/6324138/seaweed-generation-algaray/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/bltdcb4fc2ac46c5a65/698a4184cabb1d825de51de5/best-inventions-2023-AlgaRay.jpg?branch=production&width=3840&quality=75&auto=webp&crop=16:9 og:image:width: 1200 og:image:height: 675 og:image:alt: Seaweed Generation AlgaRay: The 200 Best Inventions of 2023 og:type: article twitter:card: summary_large_image twitter:title: Seaweed Generation AlgaRay: The 200 Best Inventions of 2023 twitter:description: Find out why Seaweed Generation AlgaRay made this year's list twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/bltdcb4fc2ac46c5a65/698a4184cabb1d825de51de5/best-inventions-2023-AlgaRay.jpg?branch=production&width=3840&quality=75&auto=webp&crop=16:9 --- Oct 24, 2023 # Weeded Out Seaweed Generation AlgaRay by [Alison Van Houten](/author/alison-van-houten/) ## Alison Van Houten  Invasive sargassum seaweed helpfully absorbs CO2, but also washes ashore in huge quantities from the Gulf of Mexico to Florida, emitting a foul-smelling gas and hurting ecosystems and tourism economies. The AlgaRay robot glides through the sea, scooping up floating mats of the plant. It then dives 200 m, where pressure and gravity sink it to the seafloor, taking the CO2 it has absorbed with it. Seaweed Generation has a 49-year license for trials in Antigua and Barbuda while it develops an autonomous version of the bot. ```json [{"@context":"https://schema.org","@type":"Article","@id":"https://time.com/collections/best-inventions-2023/6324138/seaweed-generation-algaray/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/collections/best-inventions-2023/6324138/seaweed-generation-algaray/"},"headline":"Weeded Out","datePublished":"2023-10-24T11:00:35.000Z","dateModified":"2026-03-31T05:10:49.759Z","description":"","url":"https://time.com/collections/best-inventions-2023/6324138/seaweed-generation-algaray/","keywords":["list","franchise","ecommerce","Magazine","best inventions","Best Inventions 2023"],"thumbnailUrl":"https://static.time.com/v3/assets/bltea6093859af6183b/bltdcb4fc2ac46c5a65/698a4184cabb1d825de51de5/best-inventions-2023-AlgaRay.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","author":[{"@type":"Person","name":"Alison Van Houten","jobTitle":null,"url":"https://time.com/author/alison-van-houten/"}],"creator":"Alison Van Houten","articleSection":"","image":[{"@type":"ImageObject","url":"https://static.time.com/v3/assets/bltea6093859af6183b/bltdcb4fc2ac46c5a65/698a4184cabb1d825de51de5/best-inventions-2023-AlgaRay.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","width":1200,"height":675}],"publisher":{"@type":"Organization","name":"Time","url":"https://time.com/","logo":{"@type":"ImageObject","url":"https://time.com/images/logo.png","width":528,"height":156},"foundingDate":"March 3, 1923","sameAs":["https://www.facebook.com/time","https://www.instagram.com/time/?hl=en","https://twitter.com/time","https://www.pinterest.com/timemagazine"]}},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"https://time.com/collections/best-inventions-2023/6324138/seaweed-generation-algaray/","name":"Weeded Out"}}]}] ```