By Tobias Carroll Described as “the world’s longest off-pavement cycling route,” the Tour Divide spans two countries in North America over the course of a 2,700 mile course. Did we mention the altitude? According to the competition’s website, cyclists taking part in it can expect to climb almost 200,000 feet over the course of the race. Right about now is where the phrase “not for the faint of heart” comes to mind. What happens when an already-taxing competition meets the extreme weather that accompanies climate change? A recent article in The New York Times explored how Tour Divide participan…