Professor Umesh Chandra Kulshrestha is the Director of Tran- disciplinary Research Cluster at the Jawaharlal Nehru University, New Delhi. Prof Kulshrestha is also a member of the Environmental Pollution Control Authority (EPCA), a regulatory body under Supreme Court of India. He is a member of EIA Accreditation Committee of NABET-Quality Council of India. He is an Assessor for National Assessment and Accreditation Council (NAAC), India. He is also the Deputy Director, South Asian Nitrogen Center, New Delhi and. He has made significant contributions towards environmental chemistry, air pollution monitoring and climate change. Prof Kulshrestha is a recipient of a number of awards. He has been associated with various international and national programs including GCRF South Asian Nitrogen Hub, Indian Ocean experiment (INDOEX), Atmospheric Brown Clouds (ABC), DEBITS-CAD, ISRO-GBP-ICARB and Surya etc. He was the Review Editor of WMO/UNEP Integrated Assessment Report on Black Carbon and Ozone 2011.