Shorter Winters: A Climate Crisis in the United States

Recent research from Climate Central reveals that winters in 80% of major U.S. cities are becoming shorter, with an average reduction of nine days compared to the period from 1970 to 1997. This analysis, which examined 195 cities, indicates that winter temperatures are arriving later and departing earlier, a trend exacerbated by the ongoing climate crisis. Notably, cities like Juneau and Anchorage in Alaska have experienced the most significant reductions, with winters shortening by 62 and 49 days, respectively. Conversely, approximately 15% of the cities analyzed, particularly along the California coast and in the Ohio Valley, have seen an increase in winter duration.

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Despite the data indicating shorter winters, the U.S. has recently faced severe winter weather, including a historic nor’easter blizzard that brought over three feet of snow to parts of Rhode Island. This has led to public figures, including former President Donald Trump, questioning the validity of climate change, suggesting that extreme cold events contradict global warming. However, experts like Mathew Barlow, a climate science professor at the University of Massachusetts Lowell, argue that such storms are not indicative of a cooling climate but rather a result of a stretching polar vortex, which may be influenced by global warming.

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The implications of shorter winters are profound, affecting both human life and the environment. Warmer winters can lead to reduced water supplies, decreased agricultural yields, and increased allergy seasons. Barlow emphasizes that these changes extend beyond immediate weather impacts, significantly altering ecosystems and natural resources. Additionally, the winter recreation industry, which generates billions in revenue, faces challenges due to rising temperatures and diminished snow cover. Reports indicate that ski resort visits in Colorado have dropped by 20% this year due to severe snow drought.

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In response to the changing climate, the Environmental Protection Agency (EPA) under Trump has revoked the endangerment finding, a key policy that allowed for the regulation of climate-heating pollution. This decision has faced legal challenges from over a dozen health and environmental justice nonprofits. Barlow criticized the dismissal of climate science, stating, “If you wait for the cold day and you say: ‘Oh, it’s cold’ and you ignore all the other warm days, that’s not an honest attempt at assessing the data.”

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Critics of the current administration's environmental policies argue that dismantling regulations undermines efforts to combat climate change. The juxtaposition of extreme winter weather with the broader trend of warming winters has fueled skepticism among climate change deniers, complicating public understanding of climate science.

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• “A shorter winter doesn’t mean no winter,” — Mathew Barlow, Professor of Climate Science

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• “These are also pretty substantial changes to ecosystems, the health of our natural community and our water resources.” — Mathew Barlow, Professor of Climate Science

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• “As winter gets warmer, we sort of lose the practice and lose the resources in place to deal with these extreme events.” — Mathew Barlow, Professor of Climate Science

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The ongoing changes in winter patterns underscore the urgent need for comprehensive climate action and public education on the realities of climate change.

The Guardian