There was confusion and frustration between the municipal, provincial and federal governments as well as local police as they sought a solution to end the protests.

Shippers are worried about the railways’ ability to haul grain, as Canadian farmers harvest the nation’s third-biggest wheat crop on record and 42% more canola than a year ago.

With average temperatures rising and heat waves become more frequent and intense, infrastructure and in particular roads are increasingly vulnerable to human-induced global warming.

Canadian National Railway Co. workers have gone on strike after failing to reach an agreement during the weekend over benefits and wages.