Today we enjoyed a visit from Vinay Jaju, co-founder and managing director of SwitchON Foundation, a key partner of Clean Air Toolbox based in Kolkata, India. Vinay shared the history of SwitchON Foundation and its sister organizations, their theory of change, and examples of projects they are implementing on the ground across India at the water-energy-agriculture nexus, and their work on clean air action in Jharkand and West Bengal. The seminar was inspiring for the Columbia audience which included Clean Air Toolbox, engineering students, and researchers in energy and energy storage.