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Satellites play a vital role in monitoring the rapid changes taking place in the Arctic. Tracking ice lost from the world\u2019s glaciers, ice sheets and frozen land shows that Earth is losing ice at an accelerating rate.<\/p>\n
Using information from ESA\u2019s ERS<\/a>, Envisat<\/a> and CryoSat<\/a> satellites as well as the Copernicus Sentinel-1<\/a> and Sentinel-2<\/a> missions, research<\/a> led by Tom Slater of the University of Leeds, found that the rate at which Earth has lost ice has increased markedly within the past three decades. Currently, more than a trillion tonnes of ice is lost each year.<\/p>\n To put this into perspective, this is equivalent to an ice cube measuring 10x10x10 km over Oslo\u2019s skyline. Putting it another way, the amount of ice loss globally is equivalent to 12 000 times<\/a> the annual water use of the Norwegian capital.<\/p>\n The sooner Earth\u2019s temperature is stabilised, the more manageable the impacts of ice loss will be.<\/p>\n Continuity in satellite data is the key to predicting future ice losses, and to assist in mitigating the threats posed by sea-level rise, shrinking high mountain glaciers and further climate feedbacks. The Copernicus Expansion missions<\/a>, CRISTAL, CIMR and ROSE-L have been designed to fill the gaps in current Sentinel capabilities for comprehensive monitoring of changes in the global ice cover.<\/p>\n