In recent weeks we have talked about waste-to-energy plants that burn waste and use the resulting heat to produce electricity. The problem, however, is that this process also produces toxic emissions. One Bill Gates-backed startup by the name of Sierra Energy has a better … [Read more...] about This startup vaporizes trash and turns it into new products—without emissions
trash
Nepalese army collects two tons of trash from Mt Everest in less than a week
Decades of commercial mountaineering have turned Mount Everest into the world's highest rubbish dump as an increasing number of big-spending climbers have paid little attention to the ugly footprint they leave behind. Fortunately, collective action once again proved its value. In … [Read more...] about Nepalese army collects two tons of trash from Mt Everest in less than a week
More measures taken by regional authorities to keep Mount Everest clean
Every year, thousands of tourists climb Mount Everest and abandon tents, leftover camping meals, fuel cans, and even human waste, turning the world’s once pristine peak into the world’s highest rubbish dump. In an effort to combat the littering issue, both Nepalese and Chinese … [Read more...] about More measures taken by regional authorities to keep Mount Everest clean