The ethical gold rush: Gilded age for guilt-free jewellery

Forget how many carats—how ethical is your gold? As high-end consumers demand to know the origin of their treasures, some jewellers are ensuring they use responsibly sourced, eco-friendly or recycled gold.

Solving the e-waste challenge requires global action

An international team of experts have highlighted the urgent need for global cooperation to reform the e-waste recycling industry and counteract the harm it poses to both human health and environment.

Could waste materials insulate buildings?

The University of Bath is testing a number of waste materials to assess their thermal performance as potential materials for insulating buildings.

Electronic waste is recycled in appalling conditions in India

The world produces 50 million tonnes of electronic and electrical waste (e-waste) per year, according to a recent UN report, but only 20% is formally recycled. Much of the rest ends up in landfill, or is recycled informally ...

Turning desalination waste into a useful resource

The rapidly growing desalination industry produces water for drinking and for agriculture in the world's arid coastal regions. But it leaves behind as a waste product a lot of highly concentrated brine, which is usually disposed ...

Is there any point in recycling?

To sort or not to sort, that is the question. Lots of people wonder whether it's really worth their time and effort to separate, wash and store recyclable materials – especially if it takes more energy to recycle, or if ...

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