Times Colonist

City study forecasts big climate changes

- SETH BORENSTEIN

WASHINGTON — The climate in New York City in 60 years could feel like Arkansas now. Chicago could seem similar to Kansas City and San Francisco could get a southern California climate if global warming pollution continues at the current pace, a new study finds.

In 2080, North Carolina’s capital, Raleigh, could feel more like Florida’s capital, Tallahasse­e, while Washington, D.C., will have a climate more akin to just north of the Mississipp­i Delta, if the globe stays on its current carbon pollution trend. Miami might as well be southern Mexico and the beautiful mornings in future Des Moines, Iowa, could feel like they are straight out of Oklahoma.

That’s according to a study Tuesday in the journal Nature Communicat­ions that tries to explain climate change better.

“The children alive today, like my daughter who is 12, they’re going to see a dramatic transforma­tion of climate. It’s already under way,” said study lead author Matt Fitzpatric­k. He’s an ecology professor at the University of Maryland’s Center for Environmen­tal Sciences in Frostburg, Maryland, which won’t quite measure up to its name with climate more like current day southern Kentucky.

But if the world cuts back on its carbon dioxide emissions, peaking about 2040, then New York’s climate can stay closer to home, feeling more like central Maryland, while Chicago’s climate could be somewhat like Dayton, Ohio’s.

Fitzpatric­k looked at 12 variables for 540 U.S. and Canadian cities under two climate-change scenarios to find out what the future might feel like in a way a regular person might understand. He averaged the climate results from 27 computer models, then found the city that most resembles that futuristic scenario.

He put the results on website that allows people to check how their nearest city could feel: http://shiny.al.umces.edu:3838/ futCitiesA­pp/cityApp/

“Wow,” said Northern Illinois University climate scientist Victor Gensini, who wasn’t part of the study. “The science here isn’t new, but a great way to bring impacts to the local scale user.”

The 540 cities on average move 850 kilometres to the south climate-wise, if carbon emissions keep soaring. If the world cuts back, the cities move on average 514 kilometres.

The city that moves the most is Wasilla, Alaska, which if emissions aren’t cut back could be similar to eastern Wisconsin, about six degrees C warmer in the summer.

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