World must act to stem surge of polluting trash, UN warns

The world generated 2.3 billion tonnes of municipal waste last year and the pile of trash is set to grow another two-thirds by 2050, the UN said Wednesday, warning of devastating costs for health, economies and the environment.

Polyethylene waste could be a thing of the past

An international team of experts undertaking fundamental research has developed a way of using polyethylene waste (PE) as a feedstock and converted it into valuable chemicals, via light-driven photocatalysis.

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