Hurricanes Are Getting Worse
https://www.nytimes.com/2019/09/03/opinion/hurricane-dorian-climate-change.html Version 0 of 1. This article is part of David Leonhardt’s newsletter. You can sign up here to receive it each weekday. The frequency of severe hurricanes in the Atlantic Ocean has roughly doubled over the last two decades, and climate change appears to be the reason. Yet much of the conversation about Hurricane Dorian — including most media coverage — ignores climate change. That’s a mistake. It’s akin to talking about lung cancer and being afraid to mention smoking, or talking about traffic deaths and being afraid to talk about drunken driving. Sure, no single road death can be attributed solely to drunken driving — and many people who drive under the influence of alcohol don’t crash — but you can’t talk meaningfully about vehicle crashes without talking about alcohol. Climate change, likewise, doesn’t cause any one hurricane on its own, but it’s central to the story of the storms that are increasingly battering the Atlantic. Why are we pretending otherwise? For more: I find the National Climate Assessment reports — cautious documents, written by a federal panel of scientists — to be helpful in understanding the role that climate change does (and doesn’t) play in influencing the weather. Those reports explain that the warming of the planet does not appear to be increasing the total number of hurricanes. But it does seem to be making those storms stronger and causing them to produce much more rain. Warmer air and seawater cause storms “to rapidly reach and maintain very high intensity,” the scientists have written. Over the last few years, hurricane activity has been “anomalous and, in one case, unprecedented.” Dorian became a Category 4 hurricane on Friday, before reaching Category 5 — the most severe designation — over the weekend and then falling back to Category 4 on Monday. Both Categories 4 and 5 qualify a hurricane as severe, and Dorian is the first Atlantic storm to reach that status this year. The heart of hurricane season often lasts from August to October. From the 1960s through the 1990s, a typical year had only one severe hurricane. In this century, the average number has roughly doubled, as you can see in the chart above. And because global warming is intensifying, scientists expect the number of extreme storms to continue rising. Programming note Thank you to Quinta Jurecic of Lawfare and Jonathan Bernstein of Bloomberg Opinion for writing this newsletter while I was on vacation over the past couple of weeks. If you missed any of their pieces, I particularly recommend Quinta’s criticism of Jim Mattis, President Trump’s former defense secretary, and Jonathan’s case for the filibuster. If you want to keep following their work, both Quinta and Jonathan are on Twitter, and Jonathan writes a newsletter. You can be sure I’ll be quoting them in coming months, too. If you are not a subscriber to this newsletter, you can subscribe here. You can also join me on Twitter (@DLeonhardt) and Facebook. Follow The New York Times Opinion section on Facebook, Twitter (@NYTopinion) and Instagram. |