Metro pollution: Paris's dirty secret
Living in a big city inevitably means exposure to pollution, but the dirtiest air that we breathe might not be on busy roads, but under the ground in metro stations.
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Norway lured by deep-sea mining for rare metals
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French forests: Putting down roots
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Guadeloupe in murky waters: French islands hit by wastewater treatment scandal
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Could natural hydrogen discovered in France be the fuel of the future?
It's often touted as the energy of the future, but making commercial hydrogen is an energy-intensive and polluting process. The recent discovery of natural hydrogen reservoirs in France, but also in Australia and the United States, could change that.
How South Korea became the champion of food waste recycling
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Indigenous leader Raoni 'wants to make sure' Brazil's Lula will keep promises on Amazon
"In [Brazil's] Congress, there are a lot of people who are against us," the Indigenous leader warned, pointing out that Lula "is not the only one who has power".
How super plants could help fight pollution
Plants have been shown to be capable of absorbing harmful substances present in the soil and in water. But how does this process work? The substances can either get sucked out of the soil, before being transported into the stems and leaves, or remain trapped below the ground, in the roots. Certain species are also able to break down polluting particles into less toxic chemicals.