Related topics: climate change · population · food

World's ageing big dams pose 'emerging risk': UN

By 2050, more than half the global population will live downstream from tens of thousands of large dams near or past their intended lifespan, according to a UN report released Friday.

How smart cities can serve citizens

Although cities and urban areas only make up a small proportion of the world's land mass, they are home to more than half the global population and that number is going to keep rising. As cities swell to capacity with more ...

A filter for environmental remediation

A team of researchers at Osaka University has developed a nanopowder shaped like seaweed for a water filter to help remove toxic metal ions. Made of layered sodium titanate, the randomly oriented nanofibers increase the efficacy ...

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