Professor William Nordhaus (IMAGE) BBVA Foundation Caption This is Professor William Nordhaus, winner of the BBVA Foundation Frontiers of Knowledge Award in Climate Change. Credit BBVA Foundation Usage Restrictions The image may be published freely as long as it is credited to the BBVA Foundation in the caption. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.