Swiss find frozen Siberia is heating up

Temperatures in Central Asia's mountain region have risen a lot more than was thought, according to new research by Swiss and Russian scientists.

The core was drilled in the area

between Belukha's two peaks (PSI)

Ice-core samples analysed at the Swiss-based Paul Scherrer Institute (PSI) show that the temperature of the Belukha glacier has increased by 2.5 degrees Celsius in the past 150 years.