Feeling lucky?

A letter to the WSJ from Mark Boslaugh and Michael Mann:

In “Climate Change Brings a Flood of Hyperbole” (op-ed, Aug. 11), Steven Koonin put himself in the unenviable position of playing down climate change precisely while we are experiencing unprecedented heat waves, storms, fires, droughts, and floods that exceed model-based expectations.

Yes but these are some other kind of heat waves, storms, fires, droughts, and floods, the kind that have nothing to do with climate change.

Mr. Koonin claims that regional projections are “meant to scare people.” But the paper he cites for support addresses the “unfolding of what may become catastrophic changes to Earth’s climate” and argues that “being able to anticipate what would otherwise be surprises in extreme weather and climate variations” requires better models. In other words, our current models cannot rule out a catastrophic future.

Model uncertainty is two-edged. If we’d been lucky, we’d be discovering that we overestimated the danger. But all indicators suggest the opposite. Those who dismiss climate risk often appeal to uncertainty, but they have it backward. Climate uncertainty is like not knowing how many shots Dirty Harry fired from his .44-caliber Magnum. Now that it’s pointed at our head, it’s dawning on us that we’ve probably miscalculated. By the time we’re sure, it’s too late. We’ve got to ask ourselves one question: Do we feel lucky? Well, do we?

The trouble is, though, it’s mostly people who will be comparatively lucky who are doing the decision-making. It’s people who are already adults, most of them adults of long standing. They won’t be around for the worst stuff, and they can’t seem to bring themselves to care enough about a future that won’t have them in it to do the right things now. Everybody’s still stuck in short-term thinking. Humans may be incapable of doing anything else when it requires major upheaval. The people alive now don’t want to stop flying all over the planet and driving big SUVs and building a second house in Phoenix or Miami.

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