Water poses challenge to major cities

Too much water, too little water, or contaminated water. Cities around the world are facing major water-related challenges. These challenges are further aggravated by global trends such as urbanization and climate change. ...

The 'water mafias' that suck Karachi dry

The moment they saw the city water tanker stop in their neighbourhood, Mohammed and Nayla rushed towards it. That day, the water was free—a rare event in Karachi, where organised gangs siphon it off to sell to thirsty residents.

ESA image: Andreas in space

ESA astronaut Andreas Mogensen's 10-day 'iriss' mission to the International Space Station includes many technology demonstrations and scientific experiments. His first scientific task on arriving at the weightless research ...

Experts see long-term risks from Colorado mine spill

Toxic waste that gushed from a Colorado mine and threatened downstream water supplies in at least three states will continue to be dangerous when contaminated sediment gets stirred up from the river bottom, authorities said ...

H2O: The province of provinces

Unsafe drinking water is a topic usually connected to the developing world. But the regular recurrence of boil-water advisories, and widely publicised outbreaks in towns like Walkerton and Kashechewan have shown that, even ...

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