Tweet Day 2 (IMAGE) University of Sydney Caption Co-author from Australia, Dr Thomas Newsome, Tweeted on Day 2 that almost 600 scientists had already signed the paper overnight. Credit Thomas Newsome 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.