My latest at IER. My conclusion:
To repeat, these researchers at Harvard and other elite institutions are very smart, and they haven’t made a mathematical mistake in their models. But the public should pause and ask if these sophisticated maneuvers match the more populist rhetoric they’ve heard on the issue. When even good news—in the form of a lowered estimate on the likely range of human influence on the climate—is construed as cause for worry, don’t people start to get suspicious that this isn’t really a neutral scientific debate?