Newsweek magazine has no doubt about what is and isn’t causing global warming.

In a Cosmo style quiz, the July 9 issue asked readers: “Which of these is not causing global warming today? A) Sport Utility Vehicles B) Rice Fields C) Increased Solar Output.”

The answer, according to co-authors Sharon Begley and Andrew Murr is increased solar output – and laid most of the blame on humans.

“Extremely warm summers, such as the 2003 European heat wave that killed thousands of people? A human fingerprint. Glacial retreat? Ditto, though it is partly natural. Stronger tropical storms, such as Katrina? Possibly our fault, though on this one the evidence is murkier. Heavy precipitation that alternates with dry spells, so that when it rains it pours? That also conforms to models of man-made climate change,” wrote Newsweek.

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