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Iceberg-watching, Dicso Bay, Greenland
The loss of ice in Greenland and the shrinking of glaciers in other parts of the Arctic currently contribute up to 40% of the average 3 mm global sea level rise per year. A number of studies suggest that Greenland could be a major contributor to a potential rise in sea levels of 0,5 to 1 meter by the end of the century.
Tourists on expedition cruises are made aware of the challenges of climate change and may come home as environmental "ambassadors".