Two billion people drinking contaminated water: WHO

Dramatic improvements are needed in ensuring access to clean water and sanitation worldwide, the World Health Organization said Thursday, warning that nearly two billion people currently use faecal-contaminated water.

Two tales of a city to understand sustainability

Just as there are two sides to every story, sustainability challenges have at least two stories to reach every solution. Scientists report new ways to understand and integrate those tales.

Understanding hydrogen electrocatalysis

Electrocatalysis will play an increasingly important role in future in the transition to more sustainable energy. Thanks to chemist Isis Ledezma Yanez, we now know more about the hydrogen evolution process. PhD defence on ...

Mille-feuille-filter removes viruses from water

A simple paper sheet made by scientists at Uppsala University can improve the quality of life for millions of people by removing resistant viruses from water. The sheet, made of cellulose nanofibers, is called the mille-feuille ...

Small landscape changes can mean big freshwater gains

A typical bird's-eye view of the Midwest offers a patchwork landscape covered mostly by agriculture but mottled with forest, wetland, grassland, buildings and pavement. This pattern influences the quality and supply of the ...

World faces 'water-energy' crisis: UN

Surging populations and economies in the developing world will cause a double crunch in demand for water and energy in the coming decades, the UN said Friday.

Classification system proposed for green roofs

Green roofs (or living roofs) are becoming a growing trend in North America – and have been long established in Europe – for their value in conserving energy, improving air quality, managing storm water runoff, beautifying ...

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