No, you can't blame the Mississippi's flooding on carbon dioxide 

Climate Progress -- a sister blog of the one that nearly blamed last month's tornadoes on the victims because they vote Republican -- predictably turns the flooding of the Mississippi into a greenhouse gas issue:

human-caused climate change is exacerbating the extreme events we would normally experience — by making deluges more intense (because of the extra water vapor in the atmosphere) and by making droughts hotter.

But they don't mention a different viewpoint:

It's difficult or impossible to attribute recent extreme weather events in North America to climate change. Tornadoes, floods, drought -- pretty much all we can conclude from them, say scientists, is that sh*t happens

Is that latter argument from some "denier" in the pocket of "big oil"? Nope. It's from Grist, a liberal environmental website, drawing out the conclusion from a study published in the journal Science. Here's how Tom Spears of the Ottawa Citizens sums up the study:

One of the world's top science journals says climate hasn't changed in most of North America -yet.

In fact, says a study in Science, temperatures in most of North America have resisted the global trend. Elsewhere, the warming has already affected agriculture significantly, reducing yields and causing food inflation.

Scientists from Stanford and Columbia Universities said Canadian and U.S. temperatures since 1980 have changed, but are still within the range of "natural variability" in weather. So in North America, the effects of climate change are practically invisible. A notable exception to the (world's) warming pattern is the United States," they write in a study published Friday.

There's plenty of politics involved in the flooding -- dams, levees, farms, shipping, etc. -- but, according to Science, CO2 isn't a culprit.

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Timothy P. Carney

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