A top glacier watcher has warned that a warm early summer and a heat wave last week could have caused severe glacier melt across Switzerland, threatening to make 2023 the second-worst year for ice loss after a record thaw last year
FILE - ETH glaciologist and head of the Swiss measurement network 'Glamos', Matthias Huss, walks up to the Rhone Glacier near Goms, Switzerland, Friday, June 16, 2023. A top glacier watcher has warned that a warm early summer and a heat wave could have caused severe glacier melt across Switzerland, threatening to make 2023 the second-worst year for ice loss after a record thaw last year.
“We can definitely say that we had very high melting in Switzerland and in Europe in general because the temperatures, they were extremely high for a long time — a more than one week heat wave,” Huss said in an interview this week. A blanket of white snow cover has a crucial effect in protecting glaciers by reflecting energy from sunlight back upward, a process known as the albedo effect.
A combination of factors made for a near-perfect storm in 2022 including low wintertime snow cover, warm temperatures in early summer, greater heat later that season, and weather patterns that carried orange-colored dust from the Sahara Desert up to Switzerland — coloring the snow and ice.“For comparison, we lost, on average, about 2% in the last decade, and already 2% is very high," said Huss. "If you extrapolate that, that would tell you that in 50 years we have nothing left.
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