Hotspots and cool spots (IMAGE) Duke University Caption A new AI algorithm picked out these city-block-sized satellite images as local hotspots (top) and cool spots (bottom) for air pollution in Beijing. Credit Tongshu Zheng, Duke University Usage Restrictions None 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.