Climate change appears to be making some of Switzerland’s vaunted glaciers look like Swiss cheese: full of holes.

The fibre-optic cables we use to surf the Internet and make phone calls could help predict a landslide or a glacier collapse.

Climate change appears to be making some of Switzerland's vaunted glaciers look like Swiss cheese: full of holes.

Due to the heatwave, the Swiss government has declared the second-highest danger level for large parts of Switzerland from Sunday. Temperatures of up to 35°C are expected over the next few days.