Climate change is costing Canadian cities billions. Experts say there’s a better solution. An Ontario highway, Highway 402, east of Windsor, had to be shut down last week because extreme heat caused it to buckle and expand for the second straight year in a row -- while one of Ontario’s key transit services, GO Transit, said it will have to slow down its trains in extreme heat because of the risk of tracks buckling.
These are just a couple of examples of cities having to react to mitigate or repair damage caused by climate change, unless they begin investing into climate-proofing their infrastructure, say climate experts.
“The level of heat that we’re now seeing and the frequency at which we see temperatures ... are beyond what infrastructure was designed for,” said Ryan Ness, director of adaptation at the Canadian Climate Institute, in an interview with CTV News Saturday.
“Steel, concrete, asphalt are expanding and contracting more often than they used to. They’re reaching temperatures they’re not designed for, which leads to either catastrophic damage like the heaving we’ve seen on Highway 402 or longer-term chronic damage: rotting potholes, degrading bridges that need maintenance more often.”
A report released earlier this year by the Canadian Climate Institute titled “Prepare or Repair: How Climate-Proofing Public Infrastructure Pays Off” found that investing in climate-proofing infrastructure could save Canadian cities billions of dollars each year.
The report estimates that over the next 75 years, Canada will have to pay roughly $15.1 billion per year on average to maintain, renew and reactively repair infrastructure but if Canada spends roughly $4.1 billion, proactively adapting infrastructure to make it climate-resilient, costs from climate change damage could be reduced to $2.5 billion per year.
The total cost of the $4.1 billion investment plus $2.5 billion in repairs means Canada could save $8.6 billion annually, according to the report.
Ness says roads are the first things governments should start tackling, taking advantage of doing maintenance work to repair the pavement with heat-resistant asphalt.
“Roads are by far Canada’s most expensive and valuable form of infrastructure just because there’s so much of it -- and it’s so important to how, not only people get around, but goods get around -- and how the economy functions in this country,” said Ness.
Global News on Umojja.com