Star: Fingers were crossed and prayers were said: please let the 100th Tour de France be free of scandal. And other than some mourning that Chris Froomes ride to victory had as many whispers of cheating as hands clapping when it wrapped up over the weekend, organizers got their wish. Still, the Tour de France has a looming enemy. And like doping, this one isnt easily fixable: climate change. It could change the Tour de France as we know it. The Tour is famously gruelling, says Andrea Wooles, science...