Ice in the Arctic Ocean melted to its second-lowest level on record this summer, triggered by global warming along with natural forces, say US scientists.
NSIDC director Mark Serreze said a Siberian heat wave last spring and a natural Arctic climate phenomenon were at play, as well as the warming from the burning of coal, oil and natural gas."Absolutely we're seeing climate change at work because the warm summers become warmer and the cold winters aren't as cold as they were," Mr Serreze said, noting there's been a downward trend over the last decade, with slight jumps up and down due to natural factors.
Studies show that the warming of the Arctic and the melting of sea ice change weather further south by altering the jet stream and other waves that move weather systems.
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