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South Africa’s coal fired power stations are breaching minimum emissions standards but shutting them down may jeopardise energy supply. Willem Cronje/Getty Images

South Africa’s new energy plan needs a mix of nuclear, gas, renewables and coal – expert

South Africa’s national electricity plan is being finalised. A scientist argues that an energy mix of nuclear, clean coal, renewable energy and gas is urgently needed to end 15 years of power cuts.
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Air quality at many train stations is alarmingly bad. Here’s how to improve it

Serious air pollution is a common problem in stations around Australia and the world. But solutions already exist, and some can be applied immediately to protect station staff and commuters.

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