Standing at almost 30,000 ft above the sea level, Mt Everest attracts thousands of high altitude climbers. Hence it is not surprising to know about all the waste left behind by trekkers.
There have been numerous clean-up drives on the mountain. The government of Nepal announced last year that 24,000 pounds of garbage (plastic water bottles, food wrappings, plastic wrappers, tattered tents, equipment, batteries and even human waste) was collected on a 45-day clean-up project. The pollution is so deep seated that a study that sampled 11 different snow regions of various altitudes found that they all contained microplastics.