--- title: Antarctica Iceberg Will Not Be Last Glacier to Go description: The image of a trillion-ton iceberg floating away from Antarctica has raised new concerns over climate change canonical: https://time.com/4855567/antarctic-iceberg-glacier-larsen-c-climate-change/ author: Justin Worland article:opinion: false article:content_tier: free article:published_time: 2017-07-13T15:20:53.000Z article:modified_time: 2026-02-23T16:31:50.708Z article:section: Science og:title: The Enormous Ice Sheet That Broke Off of Antarctica Won’t Be the Last to Go og:description: The image of a trillion-ton iceberg floating away from Antarctica has raised new concerns over climate change og:url: https://time.com/4855567/antarctic-iceberg-glacier-larsen-c-climate-change/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/bltf7c17b5b3ffc29f8/6988d585656a3f6e91bd0cdc/170713_larsen-c-iceburg.jpg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 og:image:width: 5184 og:image:height: 2916 og:image:alt: 170713_Larsen C iceburg og:type: article twitter:card: summary_large_image twitter:title: The Enormous Ice Sheet That Broke Off of Antarctica Won’t Be the Last to Go twitter:description: The image of a trillion-ton iceberg floating away from Antarctica has raised new concerns over climate change twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/bltf7c17b5b3ffc29f8/6988d585656a3f6e91bd0cdc/170713_larsen-c-iceburg.jpg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 ---  # The Enormous Ice Sheet That Broke Off of Antarctica Won’t Be the Last to Go > Sponsored content. 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Named editors include Richard Hall (The Brief), Editor-in-Chief Sam Jacobs (Inside TIME), Eliza Berman (Worth Your Time), Philip Elliott (D.C. Brief), Justin Worland (Future Proof) and Harry Booth (In the Loop). Health Matters is written by TIME's health desk. #### How do I sign up for a TIME newsletter? Go to time.com/newsletters, choose the newsletters you want and enter your email address. There is no cost and no subscription requirement.  by [Justin Worland](https://time.com/author/justin-worland/)  ## Justin Worland Senior Correspondent Jul 13, 2017 3:20 PM UTC  This is a Feb. 2017 image of the Larsen C ice shelf in Antarctica made available by the Antarctic Survey on Wednesday July 12, 2017\. A vast iceberg with twice the volume of Lake Erie has broken off from a key floating ice shelf in Antarctica, scientists said Wednesday. This is a Feb. 2017 image of the Larsen C ice shelf in Antarctica made available by the Antarctic Survey on Wednesday July 12, 2017\. A vast iceberg with twice the volume of Lake Erie has broken off from a key floating ice shelf in Antarctica, scientists said Wednesday. British Antarctic Survey—AP  by [Justin Worland](https://time.com/author/justin-worland/)  ## Justin Worland Senior Correspondent Jul 13, 2017 3:20 PM UTC The stunning visual of an Antarctic ice shelf the size of Delaware breaking off into the ocean has struck wonder and worry in those all across the world who have the seen image. Scientists mostly attribute the occurrence to cleaving, the process in which a large portion of ice separates from the larger shelf, but disagree about the extent to which climate change contributed Scientists say Larsen C will not directly contribute much to devastating sea-level rise — the ice shelf was already floating, so when it melts, waters will not rise significantly — but nonetheless the image of a trillion-ton iceberg floating away from Antarctica has raised new concerns over climate change. And rightfully so. If the entire Antarctic ice sheet melted, sea levels would rise by 200 feet globally, according to National Snow and Ice Data Center [data.](https://nsidc.org/cryosphere/quickfacts/icesheets.html) That scenario almost certainly will not happen in the lifetime of anyone living today, but scientists warn that some parts of Antarctica’s ice sheet are relatively close to collapse. One of the most vulnerable areas may be the Thwaites Glacier in the western part of the continent. A 2014 [study](http://science.sciencemag.org/content/344/6185/735) published in the journal _Science_ suggests that the glacier is likely in the early stages of collapse, with the glacier losing a fraction of a millimeter of ice annually. The researchers found that the glacier will likely begin rapid collapse as soon as 200 years from now, though potentially as long as 900 years from now. But many variables remain undetermined and some scientists have warned that ice melt in West Antartica could actually occur much faster than previously anticipated if humans continue to emit greenhouse gases at current rates. A controversial [study](http://time.com/4267963/sea-level-rise-james-hansen-climate-change/) released last year from famed climate scientist James Hansen and a team of others suggested the world could see several feet of sea level rise by the end of the century, in large part due to ice melt in West Antarctica. Larsen C looks large today — and it is. 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