So widespread is the problem of indoor air pollution, that an estimated 846 million people of our country are exposed to household air pollution, out of which 2 million deaths in india are caused each year due to poor indoor air quality caused largely due to households energy requirements.  Join us as Dr Priyadarshini Karve helps us understand why there is always such a gap with policy decisions regarding indoor air pollution and ground level requirements to solve the problem, why household energy needs are far more complex than one would think, why prosperous farmers still use archaic technology, why lab conditions cant be replicated on an industrial level, what factors drive innovation in the energy sector, and indeed, more fundamentally, how do we define clean and dirty energy in this weeks What UnEarth. Full episode now streaming across all major podcast platforms!  Find out more @whatunearth