President Trump’s announcement that the U.S. will withdraw from the Paris climate accord has catalyzed the already strong transition to renewable energy and commitments to reduce carbon emissions.

As many as 170,000 Quebec construction workers walked off the job on May 24, halting work on the new Champlain bridge over the St. Lawrence, the Turcot Interchange in Montreal and other big projects.

Uncertainty around federal infrastructure spending continues to hinder states from having the confidence to proceed with large infrastructure projects, economist Anirban Basu told attendees at the Construction Financial Management Association’s 36th annual conference.