"in 2007, the northern hemisphere reached a record low in ice coverage and the northwest passage was opened.
"in 2007, the northern hemisphere reached a record low in ice coverage and the northwest passage was opened.
climate change in the arctic:29
the 2007 melt season let to a minimum 39% below the 1979–2000 average, and for the first time in human memory, the fabled northwest passage opened completely.