An executive with the Chinese e-commerce giant Alibaba revealed at the World Economic Forum (WEF) that the company was developing an “individual carbon footprint tracker” that would track people’s travel habits, food consumption and more. True North journalist Andrew Lawton, who is currently on the ground in Davos to cover WEF’s annual convention, was the first to report on the announcement. “We’re developing through technology an ability for consumers to measure their own carbon footprint,” said Alibaba Group president J. Michael Evans, who was born in Toronto. “What does that mean? Where are they traveling? How are they traveling? What...