Once upon a time, it was only hardcore bodybuilders who pumped themselves up with testosterone. Today it is no longer niche. But how dangerous is it? By Stephen Buranyi

From 2019: The warmer it gets, the more we use air conditioning. The more we use air conditioning, the warmer it gets. Is there any way out of this trap? By Stephen Buranyi

When a microbe was found munching on a plastic bottle in a rubbish dump, it promised a recycling revolution. Now scientists are attempting to turbocharge those powers in a bid to solve our waste crisis. But will it work?

A new wave of scientists argues that mainstream evolutionary theory needs an urgent overhaul. Their opponents have dismissed them as misguided careerists – and the conflict may determine the future of biology. By Stephen Buranyi

This week, from 2018: ‘Natural wine’ advocates say everything about the modern industry is ethically, ecologically and aesthetically wrong – and have triggered the biggest split in the wine world for a generation

This week, from 2017: It is an industry like no other, with profit margins to rival Google – and it was created by one of Britain’s most notorious tycoons: Robert Maxwell