This issue's cover: Water drops can sit for hours on extremely water repellent soil. Photo courtesy of Louis W. Dekker, Alterra, The Netherlands. See Water repellency and critical soil water content in a dune sand by Louis W. Dekker, Stefan H. Doerr, Klass Oostindie, Apostolos K. Ziogas, and Coen J. Ritsema, p. 1667-1674.