2nd Notice (IMAGE) University of Sydney Caption This is the image being used to promote the World Scientists' Warning to Humanity: A Second Notice and the same authors' response letter. Credit Oliver Day, Oregon State 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.