New photos vs old
On the hairpin bend of a Swiss mountain pass, a Victorian-era hotel built for tourists to admire the Rhone Glacier has been abandoned now that the ice has retreated nearly 2 km (1.2 miles) uphill.
Where mighty glaciers once spilled into Swiss valleys like frozen rivers of ice, a residue of grey scree and boulders remains, spliced through with raging streams.
A Reuters montage of images - showing photos of modern-day mountain landscapes next to archive shots of the same scenes decades earlier - reveals the dramatic change.
More than 500 Swiss glaciers have already vanished, and the government says 90% of the remaining 1,500 will go by the end of the century if nothing is done to cut emissions.
Their retreat is expected to have a major impact on water levels - possibly raising them initially as the ice melts but depleting them long term. Officials fear the changes could trigger rockfalls and other hazards and affect the economy.
The Belvedere Hotel, built in the 1880s during a surge in Alpine tourists, was an early victim of the decline. Once the scene of wild parties, it features in a James Bond car chase in “Goldfinger”.
Visitors can still walk into a cave carved into the glacier. But the ice above is now draped with huge white sheets to reflect the sun’s heat. Despite such efforts, melt waters have formed a green lake.
Down the valley, a mid 19th century photograph shows the glacier’s bulging snout more than 100 metres thick. Now, animals graze and a river meanders on the same spot.
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