UK Sunday Times link here or here: (subscription required):
The Sunday Times: ‘Arctic ice at record low – and shrinking’ – By Jonathan Leake – Published: 26 August 2012
Excerpt: ‘Professor John Christy director of the Earth System Science Centre at the University of Alabama in Huntsville, said the Arctic had indeed warmed, but there was also anecdotal and other evidence suggesting similar melts from 1938-43 and on other occasions.
“Climate change is a murky science”, he said. “To some it’s an easy answer to say it’s due to extra green house gasses. To the rest of us, separating natural variability from human impacts remains a wicked problem.”