At Europe's melting glaciers, signs of climate peril are everywhere

MORTERATSCH, Switzerland — Almost 7,000 feet above sea level, the trail leading up to Morteratsch Glacier gets a little longer every year. Leo Hösli has made the climb many times. Each step sends shards of stone clattering downhill, debris once sealed beneath glacial ice. Leo Hösli. Sara Monetta / NBC News