City, NCC preparing for wetter, warmer future

The City of Ottawa and the National Capital Commission are looking for an expertto tell them how climate change might affect local weather so they can prepare for a wetter, warmer future.

The city and the NCC have issued a joint call for a consultantwho can compute meteorological data to show what the next 20 to 80 years might look like in the capital.

Given that we're experiencing some extreme weather events, for example with the flooding, I think there's a need to do this now- Emily Rideout, NCC

Both already know the broad trends to expect, but say they need quality climate projectionsspecific to the capital regionthat all departments can work from.

Once they have the data in hand, both organizations plan to come up with lists ofthe biggestrisks for their operations whether that's flooded shorelinesor major utilities that can be knocked out by storms.

Skatewaystudy

The NCClast commissioned a study more than a decade ago,when it learned what warmer winters might mean for skatingon the Rideau Canal and cross-country skiing in GatineauPark.

Now it's time for an update, saidEmily Rideout, who's overseeing the project for the NCC.

"Given that we're experiencing some extreme weather events, for example with the flooding [in Gatineauin 2017], I think there's a need to do this now," she said.

The NCC is the area's biggest landownerand maintains hundreds of buildings, Rideout said. This data will lead to an adaptation strategy to handle issues like flooding on theOttawa River and cooling federal buildings in extreme heat.

As for the Rideau Canal Skateway, theNCC plan to use thedata to do a specific report on howthe skating season might be affected.

Ottawa preparing to adapt

Once the City of Ottawahas solid local climate projections, it, too, will come up with lists of the biggest gaps to address.

Public health officials could use the projections to think aboutdiseases such as Lyme and West Nile, while public worksstaff mightlook at the data to think about how power outages affect utilities, suggestedJulia Robinson, who works on the city's climate change and resiliencyteam.

The city has recently focused on what it needs to do to curbthe emissions that cause climate change and hit its targets, but Robinson explained this data will help it deal with the other part of the puzzle: adapting to a new normal.

"This time of year everyone is looking at the potholes, and clearly there is a link between our changing weather patterns and freeze-thaw cycles, and what that means for our road servicing."

The city is diving into its mostimportant documents in the coming years, includingupdating its official plan, and Robinson said data could lead the city to require future neighbourhoods be built in ways that make them more able to withstand heavy rain or stay cool in heat waves.

Other cities tacklingclimaterisks

Other cities have already done localized projections.

Cambridge, Kitchener and Waterloo, Ont., together commissioned a report to learn that their region would have far more hotsummer days, intense rainand milder winters.

A report for Durham Region, Ont., in 2016 also described higher temperatures and wilder storms by the 2040s. That report also laidout specific ways the changed weather would affect city business.

For instance, road and utilitycrewsmight need to work shifts that avoid the hottest hours of a summer day.

Durham took it further, looking atelectrical equipment that could be vulnerable to flooding, and considering encouraging light-coloured pavement and roofs to reduce the "urban heat island" effect.

The NCCand City of Ottawa are looking for proposals until April 4. They hope to have a report to share with the public by late 2019 or early 2020.

Gatineau is gathering projections for its own climate change plans, and expects those in2020.