Sunset (IMAGE) University of New South Wales Caption Heatwaves will become a daily occurrence over summer in some regions even if global warming is kept to 2°C. Credit Anna Jiménez Calaf on Unsplash Usage Restrictions Credit Anna Jiménez Calaf on Unsplash 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.