Learning Experience (IMAGE) Columbia Climate School Caption Arthur Lerner-Lam, deputy director of Columbia University's Lamont-Doherty Earth Observatory, speaks to financial professionals about climate science and portfolio risk. Credit Courtesy Lamont-Doherty Earth Observatory Usage Restrictions Credit must be given. 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.