Everest climbing season is here. In May, when the mountains in Nepal and Tibet warm, the temperature at Base Camp on Everest heats up to a daily high of around 25°F, and the winds around the world’s tallest peak still. That’s when bold tourists begin arriving on the mountain by the hundreds for their once-in-a-lifetime, $25,000-$75,000 journeys to the thin sky atop Mount Everest. Read More at The Business Insider.