Holidaymakers concerned about fresh volcanic eruptions causing flight-disrupting ash clouds might be reassured by a study setting out the first reliable estimates of their frequency.

A jet stream within the Earth’s molten iron core has been discovered by scientists using the latest satellite data that helps create an ‘x-ray’ view of the planet.

The way in which man-made acids in the atmosphere interact with the dust that nourishes our oceans has been quantified by scientists for the first time.

A study suggests that pharmaceuticals are polluting our rivers more than pesticides.

A new £6 million project led by the University of Leeds is predicted to bring a £50 million benefit to the Yorkshire economy by reducing the costs and impact of water-related threats to the region.