The seventh in a series of global events to discuss such big energy questions, convened by National Geographic as part of the Society’s Great Energy Challenge, produced with the financial support of Shell, the discussion identified challenges and solutions. Participants hardly needed reminding that the World Health Organization earlier this year reported Delhi to be the city with the world’s dirtiest air, a serious hazard to the health of its ten million occupants.

At the same time, no one disputed that India also needed to lift hundreds of millions of its people out of poverty; providing sustainable, affordable energy to all is a necessary prerequisite for that. That’s India’s great energy challenge, and the discussion on how to address it was lively.

The moderator for the Big Energy Question