Cli­mate change pre­dic­tions sought for build­ing codes

Truro Daily News - - News | Canada -

OT­TAWA – The National Re­search Coun­cil says Canada’s homes and high­ways were built with as­sump­tions about weather pat­terns that are no longer rel­e­vant, thanks to cli­mate change.

The NRC is­sued a ten­der last week look­ing for a con­sul­tant to up­date weather data for 660 lo­ca­tions across the coun­try - part of an ef­fort to up­date the national build­ing code so roads and struc­tures can bet­ter with­stand the con­se­quences of a warmer planet.

It is part of a $40-mil­lion, five-year cli­mate-re­silient build­ings project out­lined in this year’s fed­eral bud­get.

The coun­cil wants its would-be con­sul­tant to de­velop new cli­mate data in­for­ma­tion on ev­ery­thing from sea­sonal tem­per­a­tures to snow and rain­fall amounts, wind pres­sure and per­mafrost cov­er­ings.

In the North, melt­ing per­mafrost and coastal ero­sion from ris­ing sea lev­els are al­ready big chal­lenges; fur­ther south, heav­ier snow­fall, more fre­quent and windier storms and un­usual pre­cip­i­ta­tion pat­terns are cre­at­ing new prob­lems for build­ings, roads and bridges.

The new data will be then used for a 2020 up­date to the national build­ing code and the national high­ways build­ing code, which are not laws but serve as mod­els for prov­inces and mu­nic­i­pal­i­ties.

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