Category: Environment
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Recovering water out of thin air
Fog catchers have been providing water to people in dry, mountainous regions for decades. Due to climate change, more regions get drier, pushing the need for this technology.
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Solar desalination sees the light of dawn
New solar technologies promise a more sustainable way for water-starved communities to squeeze drinkable water out of the salty seas.
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How we can save hydropower
The way we’ve historically generated energy from water is not good for the environment. Here’s how that’s changing.
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Four interesting ways to treat industrial wastewater
In the face of large-scale industrial water pollution, technologists are demonstrating the surprising value of wastewater.
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5 “green cities” lead the way
Searching for smart and sustainable solutions, they show how to curb energy use, reduce carbon emissions and create more livable spaces.
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Using data to make cities greener
As politicians stall when it comes to dealing with climate change on a national level, local data-based projects are trying to reduce carbon emissions on their own doorsteps
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Extreme rain: how cities are preparing
Violent rainstorms are already more frequent, and they will only get worse. Europe’s metropolises are working on ways to protect themselves.
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Heating, a major trial
Temperatures in cities need to fall – and fast. But how?
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Fighting energy waste in buildings
Buildings accounts for a huge proportion of the world’s energy consumption. Zoom on some innovative solutions to cut the waste.
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The concrete challenge
It’s the world’s most ubiquitous construction material – but it comes with a hefty environmental cost.
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Amsterdam’s Waterworld
An expert discusses the challenges of creating a major district entirely with floating houses.
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The other wonder gas
By being the first to extract methane hydrates last year, Japan has launched a new global race.
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To frack or not to frack
Can America’s shale-gas revolution be repeated in Europe? The furore over earthquakes and chemicals has obscured more important issues.