We are all aware of the breadth of issues that we face as a planet when it comes to securing sustainable water supplies in the future. Global changes in climate, land use and demographics mean that there will be different pressures on water availability and quality and these have the potential to affect human health and the environment. Whilst some challenges are long-standing, such as ensuring adequate sanitation for all, we also face emerging issues, in the form of new pollutants, such as hormones and pharmaceuticals.
Last year in Leipzig, leading scientists from China, Germany, Japan, the UK and the USA met at the 6th Chemical Sciences in Society Symposium (CS3) to discuss how chemistry could contribute to future global water security. The meeting is part of an ongoing series that brings together leading scientists from these nations, with the support of their national chemical societies and national funding bodies to discuss the role of the chemical sciences in different global challenges.
The discussions from the meeting have been captured in the recently launched white paper Chemistry and Water: Challenges and Solutions in Changing World, which highlights the future research directions, collaborations and policies that are needed to ensure global water needs can be met in the future. The discussion at the meeting encompassed wide range of issues, including the link between water, the environment and human health, the need for ever-evolving detection methods, improved water treatment techniques and the opportunities presented for recovering valuable materials from water.
A number of themes emerged from discussions across all areas, such as the need for chemists to work alongside other disciplines, such as engineering, ecology and epidemiology and the importance of continual international knowledge exchange and collaboration. The white paper also makes more detailed recommendations for research directions in the different themes of environment and health, detection, treatment and recovery of materials and includes case studies on how water challenges are being tackled in each nation.
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