Istanbul is one of the world's biggest cities, growing larger still every year. Its rapid expansion is putting enormous stress on its water supplies.

Several old fossil fuel wells in the north of England were going to be used for fracking. Instead, they may now be a template for the UK's geothermal industry.

From Scotland to California, golf courses are being rewilded – with lofty aims to benefit both people and nature.

Solitary lifestyles can have some big advantages in the animal world. Can humans learn anything from them?

Moments in human history are etched into the Earth. Now researchers are piecing together evidence of our impact on the planet – through the marks we've left on nature.

Scientists and industry are finding unusual new uses for brewers' spent grain – the beer industry's largest waste product.

Dutch scientist Leonie Cornips has become fascinated with how cows communicate. But can this really be called 'language'?

These tiny soldiers can eat four times their own weight in organic waste – and turn it into sustainable fertiliser.