Ars Technica: The Earth wouldn't have much of a climate if it weren't for the Sun. But it's a different thing entirely to conclude that because of its essential role the Sun contributes significantly to climate change. To alter the climate, the amount of energy sent our way by the Sun would have to vary significantly. And most studies have found that, while the Sun's output does vary, it hasn't seemed to have changed enough to have left a mark on the recent climate record.
But a few studies have suggested that...