The following publications just came out:

• Wada, Y., L. P. H. van Beek and M. F. P. Bierkens, 2011. Modelling global water stress of the recent past: on the relative importance of trends in water demand and climate variability. Hydrology Earth System Sciences, 15, 3785-3808, doi:10.5194/hess-15-3785-2011.
• Wada, Y., L. P. H. van Beek and M. F. P. Bierkens, 2012. Nonsustainable groundwater sustaining irrigation: A global assessment. Water Resources Research, 48, W00L06, doi:10.1029/2011WR010562. (Also a Featured Article, downloaded 258 times)
• Karssenberg, D. and M.F.P. Bierkens. 2012. Early-warning signals (potentially) reduce uncertainty in forecasted timing of critical shifts. Ecosphere 3, Article 15,  [doi:http://dx.doi.org/10.1890/ES11-00293.1]