By Alex Prewitt Although snowflakes played a starring role, the subdued show did little to address the grave implications of climate change. BEIJING — Martin Müller is a professor of geography at the University of Lausanne in Switzerland, a centuries-old institution whose main campus is nestled along the northern shoreline of Lake Geneva. There he enjoys taking breaks from work to go for picturesque strolls, even if it means sometimes bumping into employees of the area’s most famous resident, the International Olympic Committee. “Interesting neighbor,” Müller says. “We know each other. We resp…