Affected Area (IMAGE) Columbia Climate School Caption Farmland in eastern Oklahoma, one of the farflung regions that researchers have found are susceptible to simultaneous heat waves. Credit Kevin Krajick/Earth Institute 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.