http://news.bbc.co.uk/1/hi/world/europe/4533945.stm

"Cloak protects glacier from sun

Workers at Gemsstock believe others will copy their technique

Workers at a Swiss ski resort have wrapped part of a retreating glacier in
reflective sheeting to protect it, they say, from global warming.
The Gurschen glacier, nearly 3,000m (10,000ft) above sea level, is melting
like many others worldwide, with the worst damage done in summer. "

see link for rest......