Melting glaciers: Germany's 'could disappear' in 50 years
Germany's five alpine glaciers could disappear within 50 years, according to glaciologist Christoph Mayer.
The high temperatures and low rainfall this year have made it hard for the glaciers to stay frozen.
Mr Mayer said: "The most important measure is to reduce greenhouse gas emissions."
This text has been corrected to reflect the expert's view that the glaciers may disappear within 50 years - the original version incorrectly quoted 15 years.
Video by Gem O'Reilly