Asia Sentinel: The Siachen glacier, at 19,000 feet in elevation, has long been a flashpoint between India and Pakistan and is the world’s highest battlefield, with intermittent exchanges of fire. However, there may not be much left to fight over as the ice mass is disappearing due to global warming caused by emissions by industry and transport sectors. Recent studies have found that the length of the glacier has dwindled to half from 150 km to 74 km. Dr Rajeev Upadhayay, of the geology department at …