Melting Arctic Ice Caps - Man Made Global Warming, or Natural Causes?

While the Arctic ice caps are back to normal levels, was it AGW that caused the ice to melt to below normal levels, or natural causes that caused the melting? NASA is now saying that natural cycles caused the ice to melt, not "man made global warming" "A team of NASA and university scientists... show more While the Arctic ice caps are back to normal levels, was it AGW that caused the ice to melt to below normal levels, or natural causes that caused the melting?

NASA is now saying that natural cycles caused the ice to melt, not "man made global warming"

"A team of NASA and university scientists has detected an ongoing reversal in Arctic Ocean circulation triggered by atmospheric circulation changes that vary on decade-long time scales. The results suggest not all the large changes seen in Arctic climate in recent years are a result of long-term trends associated with global warming."

"Our study confirms many changes seen in upper Arctic Ocean circulation in the 1990s were mostly decadal in nature, rather than trends caused by global warming,"

http://www.jpl.nasa.gov/news/news.cfm?re...

Now we know that warming of the arctic was natural, can we say that the warming of the Earth was just natural as well?

Will temperatures be cooler now, like this winter?
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