Tufts University's first Massive Open Online Course (MOOC), The Biology of Water and Health (Part 1), is currently available for registration on the edX platform: http://tinyurl.com/tuftswatermooc. The course starts on November 4, 2014. Taught by Tufts professors Jeffrey K. Griffiths, Public Health and Community Medicine and David M. Gute, Civil and Environmental Engineering, this course is a uniquely interdisciplinary approach to critical water and water-related health challenges across the globe.