India, Sept. 2 -- Do you know what trekkers and hikers find when they finish their summits at major mountain ranges? A sense of tranquility, peace and victory, one may answer. However, in reality, it's all kinds of plastic waste - that neither degrades nor gets disposed. When a few years ago, Paras Saluja, founder and director of Shayna ECOunified, reached the Everest base camp, successfully completing his summit and saw plastic waste being dumped on the "world's most beautiful place," a realisation hit him. He wanted to bar not the use of plastic, but the disposal of it, completely. But how? He wondered. Meanwhile, Vietnam was his next travel destination. During one of his walks through a food street, which was completely based on the us...