In an alarming finding, a study by Isro’s Ahmedabad-based Physical Research Laboratory (PRL) has found that “aerosols are heating up the Himalayas, and will remain a key factor driving climate change over the Hindu Kush–Himalaya–Tibetan Plateau (HKHTP) region”. It also said “aerosols alone account for over 50% of the total warming (aerosols + greenhouse gases) of the lower atmosphere”.