The long-range forecast for Canadian cities is hot. And we’re talking for the next 100 years or so.
As summer weather finally arrives, municipal governments across the country are preparing for the long-term impact of climate change, adapting everything from the trees they plant to how their emergency services personnel are trained in preparation for the gradual increase in temperature and wildly fluctuating weather patterns expected in decades to come.
“Either you’re a believer in climate change or you’re not, but I don’t think you can deny that the weather we’re seeing across the country is different,” said Serge Dupuis, manager of engineering for the city of Dieppe, N.B. “Believe it or not, it’s here and if you’re ready for the worst, it’s going to help.”
The politics of climate predictions aside, cities around the world seem to have accepted that municipal roads, bridges and infrastructure projects will need to change with the weather.
On Friday, Mr. Dupuis appeared as part of a panel of municipal experts discussing climate change at the annual meeting of the Federation of Canadian Municipalities in Halifax.
And next week in Vancouver, city representatives from across Canada, the United States and Britain will gather at a conference dubbed “Resilient Communities: Preparing for the Climate Challenge.”
The B.C. city is one of many municipalities that have already begun to prepare. First responders with the city’s emergency medical services have recently been trained in recognizing heat stroke, historically an unusual condition in the cool, Pacific climate. The city has also mapped the location of its public water fountains to figure out which areas are underserved in the event of a heat wave.
In other parts of the country, weather is presenting a range of planning issues.
The National Capital Commission in Ottawa was forced to cover its annual ice sculpture exhibit last winter as a concession to warmer nighttime temperatures.
Mr. Dupuis’s city, which sits on New Brunswick’s Petitcodiac River, fed by the Bay of Fundy, has hired an environmental consultant to model future weather patterns and how they will affect the region. He expects Dieppe will have to raise the height of its existing dyke system as tide levels increase. This march, the city experienced the highest level of flooding in municipal memory.
In the United States, climate scientists have warned Chicago that the city’s weather will resemble that of Baton Rouge, La., by the end of the century. There, city streets are being repaved with materials permeable to water in preparation for drastically higher levels of precipitation, and trees indigenous to the southern states, like swamp oaks and sweet gum trees, are replacing the traditional white oak in city planters.
Toronto, too, has changed the type of species planted within the city. Beth McEwen, the city’s manager of urban forest renewal, said her department has increased its use of the Kentucky Coffeetree, a species that is not native to Ontario.
“Climate change can mean all kinds of things: hotter days, longer droughts, so it’s about trying out different species and seeing what thrives,” she said.
Toronto adopted a climate change action plan in 2008 called “Ahead of the Storm,” which recommended 76 separate changes, from an increased tree canopy to a revamped storm water system.
Mark Bekkering, the city’s manager of environmental implementation, said they are in the process of mapping the city to see where additional green space is needed, and studying which bridges and roads could be affected by extreme weather patterns.
Toronto Public Health is also preparing to help those who will be most affected by warmer temperatures: the homeless, elderly and low-income populations. Their biggest concern, said Mr. Bekkering, is the prediction that nighttime temperatures will remain high, requiring increased support services around the clock.
