Forty kilometres of fjord carrying the output of Sermeq Kujalleq, the most productive glacier in the northern hemisphere, which moves 20 to 35 metres a day and calves about 20 billion tonnes of ice a year into Disko Bay. Some of the bergs stand a kilometre tall. The big ones drift south and often do not finish melting until they are down around 40 to 45 degrees north, which is the latitude of New York, and this is the glacier generally credited with producing the iceberg that sank the Titanic. UNESCO listed it in 2004 both for what it looks like and because this glacier is central to how we came to understand human-driven climate change. People have lived here nearly 4,000 years; the Sermermiut site shows three separate Inuit cultures. Boardwalk from Ilulissat town.
Ilulissat, Greenland
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