if you’ve ever thought about climbing Mount Everest, you better pack an extra trash bag. A new rule requires all climbers to bring down eight kilograms of garbage over and above their own trash. Odds are they won’t be bringing down banana peals, at least if you believe new research that bananas could be under threat. That and more, in today’s Global Scan.if you’ve ever thought about climbing Mount Everest, you better pack an extra trash bag. A new rule requires all climbers to bring down eight kilograms of garbage over and above their own trash. Odds are they won’t be bringing down banana peals, at least if you believe new research that bananas could be under threat. That and more, in today’s Global Scan.