We show that OPEC's market power contributes to global warming by enabling producers of relatively expensive and dirty oil to start producing before OPEC reserves are depleted. We fully characterize the equilibrium of a cartel-fringe model and use a calibration to examine the importance of this...

This paper proposes a novel approach to study the macroeconomic effects of oil prices, exploiting institutional features of OPEC and high-frequency data. Using variation in futures prices around OPEC announcements as an instrument, I identify an oil supply news shock. These shocks have...