An expedition was launched recently in a bid to clean up the mess atop Mount Everest, the world's highest peak. Fifteen Nepali climbers set out with empty sacks to collect 1,500 kg of garbage in 50 days from the peak, which is now known as the highest junk yard on earth. Each member of the expedition win make five trips carrying 20 kg of trash each time. It has been jointly sponsored by the Nepal MountaIneerIng Association and the Nepalese government.