Skiing has been around for at least eight millennia. Skis from 6000 BCE have been found in northern Russia , while 5000-year-old cave paintings in China appear to show people skiing .

Researchers in the US have developed bio-based air filters that they claim can capture toxic chemicals that current filters can’t.

A significant proportion of food waste is dairy. WRAP, a UK charity that helps individuals and organisations reduce waste, says that 20% of the estimated 1.