One way to deal with a problem is to pretend it doesn't exist. This approach has the virtue of relieving you from having to come up with a solution, spend money or make tough choices. The downside, of course, is that leaky faucets and other problems rarely solve themselves and, in fact, usually get worse if ignored.
Such is the case with climate change, a threat that too many members of Congress, most of them Republicans, have decided to manage by denying the science. That head-in-the-sand approach avoids messy discussions of higher energy prices, but it just got harder to justify.
Late last week, the nation's pre-eminent scientific advisory group, the National Research Council arm of the National Academy of Sciences, issued a report called "America's Climate Choices." As scientific reports go, its key findings were straightforward and unequivocal: "Climate change is occurring, is very likely caused primarily by human activities, and poses significant risks to humans and the environment." Among those risks in the USA: more intense and frequent heat waves, threats to coastal communities from rising sea levels, and greater drying of the arid Southwest.
Coincidentally, USA TODAY's Dan Vergano reported Monday, a statistics journal retracted a federally funded study that had become a touchstone among climate-change deniers. The retraction followed complaints of plagiarism and use of unreliable sources, such as Wikipedia.
Taken together, these developments ought to leave the deniers in the same position as the "birthers," who continue to challenge President Obama's American citizenship — a vocal minority that refuses to accept overwhelming evidence.
The Climate Choices report didn't generate big headlines because its conclusions aren't new; they are consistent with the scientific consensus about global warming. That consensus acknowledges some uncertainty in the extent to which climate change is the result of human activity, and how bad global warming will be if nothing is done.
Even so, as the report says, "uncertainly is not a reason for inaction," and the most effective national response to climate change would be to "substantially reduce greenhouse gas emissions."