Up to one billion tonnes of solid waste is being openly burned worldwide each year and risks the health of “tens of millions of people”, according to a review of the latest scientific evidence.

Drones, robots and autonomous systems can transform the natural world in and around cities for people and wildlife.

The global food system could drive rapid and widespread biodiversity loss if not changed, new research has found.

For the first time scientists have provided clear evidence that tropical tree lifespan decreases above a critical temperature threshold.

A new study shows that strong and rapid action to cut emissions of carbon dioxide and other greenhouse gases will help to slow down the rate of global warming over the next 20 years.