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Affiliations Packing and Industrial Materials Laboratory, Prime Polymer Co., Ltd., 3 Chigusa-Kaigan, Ichihara, Chiba, 299-0108, Japan Yasuhiko Otsuki  & Hiroko Sasaki School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa, 923-1292, Japan Yoko Fujii , Panitha Phulkerd  & Masayuki Yamaguchi Corresponding authors Correspondence to Yasuhiko Otsuki or Masayuki Yamaguchi. More

1. The Global Risks Report 2018 (World Economic Forum, 2018). 2. Grant, S. B. et al. Taking the “waste” out of “wastewater” for human water security and ecosystem sustainability. Science 337, 681–686 (2012). 3. Vörösmarty, C. J. et al. Global threats to human water security and river biodiversity. Nature 467, 555–561 (2010). Article Google Scholar […] More

Since 1920, when Staudinger first reported his seminal paper describing evidence that macromolecules exist, many researchers have studied synthetic methodologies of polymers and developed their practical applications over the last 100 years. In particular, triggered by great discoveries in the 1950s, that is stereospecific polymerization of propylene by Natta and living anionic polymerization of styrene […] More

1. Hoekstra, A. & Hung, P. Virtual Water Trade: A Quantification of Virtual Water Flows between Nations in Relation to International Crop Trade Value of Water Research Report Series No. 11 (UNESCO-IHE Institute for Water Education, 2002); http://www.waterfootprint.org/Reports/Report11.pdf 2. Allan, J. A. Groundwater 36, 545–546 (1998). 3. Hoekstra, A. Y. & Chapagain, A. K. Water […] More

COMMENT 31 December 2019 There is no room for squeamishness in the face of the world’s growing water shortage — three steps could vastly improve the image of reused water for drinking. Cecilia Tortajada & Cecilia Tortajada is a senior research fellow at the Institute of Water Policy, Lee Kuan Yew School of Public Policy, […] More

CORRESPONDENCE 31 December 2019 Lele Shu & University of California at Davis, USA. Contact Search for this author in: Zexuan Xu Lawrence Berkeley National Laboratory, Berkeley, California, USA. Search for this author in: Your view that China’s re-vegetation of its deserts could exacerbate water shortages risks oversimplifying an incredibly complex eco-restoration problem (Nature 573, 474–475; […] More

1. Miller, S., Muir-Wood, R. & Boissonnade, A. in Climate Extremes and Society (eds Diaz, H. F. & Murnane, R. J.) 225–247 (Cambridge Univ. Press, 2008). 2. Hydrologic Information Center—Flood Loss Data (National Weather Service); http://www.nws.noaa.gov/hic/ accessed June 30, 2018. 3. Winsemius, H. C. et al. Global drivers of future river flood risk. Nat. Clim. […] More

CORRESPONDENCE 02 December 2019 Tom Gleeson, University of Victoria, British Columbia, Canada. Contact Search for this author in: Karen Villholth, International Water Management Institute, Pretoria, South Africa. Search for this author in: Richard Taylor, University College London, UK. Search for this author in: Debra Perrone & University of California, Santa Barbara, USA. Search for this […] More