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This is an excerpt of the Sustainable Switch newsletter, where we make sense of companies and governments grappling with climate change, diversity, and human rights on Tuesdays, Thursdays and Fridays.

On a dry, hot day this summer, Kathryn Barnwell, a retired English professor, marched up the road from her home in Nanaimo, B.C., to take another crack at the mayor. Leonard Krog, a longtime friend of ...