While a layer of cold fresh water below the bottom of the ice shelf and above the underlying warm ocean is slowing the rate at which the flat parts of the ice shelf melt, the team was shocked to discover that melting across the bottom of the ice shelf has created a staircase-like formation. Antarctica's Denman Glacier is sinking into the world's deepest canyon Greenland's glaciers are melting 100 times faster than estimated Wow! Iceberg larger than London breaks off Antarctica (photos) Cracks and crevasses weren't the only area of the shelf experiencing rapid melting, however. This can result in the widening of these crevasses, causing large rifts in the ice shelf. Melting in cracks and crevasses is potentially dangerous because as water funnels through them, heat and salt can be transferred into the ice. The new data provides a clearer picture of the changes taking place under Thwaites, revealing that ice in cracks across the glacier is melting quickly. The factors causing this retreat are, however, poorly understood. The grounding zone of this glacier has retreated by 8.7 miles (14 kilometers) since the 1990s, making Thwaites one of the fastest-changing glaciers in Antarctica. Icefin is particularly useful for investigating the grounding zone of Thwaites, the point at which the glacier touches the ocean floor, which has previously been almost impossible to study. To assess the Thwaites Glacier's vulnerability to collapse, the two groups observed ice melt rates and the properties of the glacier and its surrounding ocean by lowering instruments via a 1,925 feet (587 meters) deep hole drilled into the ice and by launching a torpedo-shaped underwater robot called Icefin under the glacier. This could, in turn, destabilize neighboring glaciers, potentially increasing future sea levels by almost an additional 10 feet (3 meters). The collapse of Thwaites would cause seawater levels to rise by around 2 feet (65 centimeters). One part of the glacier juts out into the ocean and holds back the rest of the ice-mass that lies on bedrock, thus preventing it from slipping from the land to the sea.īecause the Thwaites Glacier slopes down towards the sea, it is particularly susceptible to climate and ocean temperature changes that could lead to rapid and irreversible ice loss.
More and more Twitter and Instagram users created their own versions of the template going into the rest of November 2021.Thwaites Glacier is located in West Antarctica and covers 74,000 square miles (192,000 square kilometers). The above meme was reposted to other platforms like Instagram in the days following. The meme (shown below) received 494 likes over the course of six days. Their chart made references to other memes like Squirting Isn't Real. Their meme (shown below) received roughly 500 likes over the course of six days.Īlso on November 23rd, 2021, Twitter user posted the first known version of the meme on Twitter. On November 23rd, 2021, Instagram account posted the first known exploited version of the chart, inserting other words and phrases into the pyramid via caption changing. Her tweet reply roughly 450 likes over six days. For instance, Twitter user posted a reply on November 23rd, 2021, that noted the omission of the "Celebs moisturize with baby foreskins" conspiracy from the original 2020 version. The post received roughly 22,400 likes over the course of six days.Īfter the November 22nd, 2021, tweet, people on Twitter reacted to the chart. She also posted the new version to her Instagram on November 23rd. The tweet (shown below) received roughly 73,200 likes over the course of seven days. On November 22nd, 2021, Richards posted an updated 2021 version of her conspiracy chart to her Twitter. It was reposted to other sites like Imgur in the days following. On October 3rd, 2020, she posted a 2020 version of the chart to her Twitter, which received roughly 31,700 likes over the course of one year. The original conspiracy chart was created by social-media personality Abbie Richards.
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