On the Matterhorn, a researcher shows the effects of climate change. Large rock falls, which used to occur only every 40 years, now happen every year - a danger for hikers and residents. By Jan Seidel.
On the Matterhorn, a researcher shows the effects of climate change. Large rock falls, which used to occur only every 40 years, now happen every year - a danger for hikers and residents. By Jan Seidel.