Interesting Engineering spoke to one of the researchers, William Kochtitzky, to explore their results further.
) break off from the edge of a glacier, remains largely "unquantified" in most glacial models. Now a pair of researchers, William Kochtitzky and Luke Copland, from the University of Ottawa in Ontario, Canada, are the first to map out all of the glaciers that end in the ocean in the northern hemisphere, estimating their pace of change over the previous 20 years.
On this note, they claim that almost all of these ice sheets are in retreat due to frontal ablation. In other words, they are losing mass by calving icebergs and releasing them into the ocean. One highlight from their initial study was that part of their approach involved manually tracing the location of each glacier's front in 2000, 2010, and 2020 using photos from satellites such as
"Over the last 20 years this adds up to more a little more than half the size of Prince Edward Island, Canada, the US states of Delaware and Rhode Island combined, or about 3 times the size of Luxembourg," he added.
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