Crude prices remain in focus with brent crude rising to nearly seven year highs. It is holding above $85 a barrel. The increase in prices is fuelled by weak supply of natural gas and coal across the world, even as the onset of winter sees demand for heating rise. WTI NYMEX is over a percentage higher at $83 a barrel. CNBC-TV18 was in conversation with Daniel Yergin Vice Chairman at IHS Markit and Author of ‘The New Map: Energy, Climate, and the Clash of Nations’ from CeraWeek Summit.