Glaciers in Switzerland, which host the most glaciers in the Alps, experienced a 5.5% decline in ice volume this year, marking the second-largest drop in history. This reduction was primarily attributed to heat waves and a lack of snowfall during winter, according to experts.
The GLAMOS Swiss glacier monitoring service and the Swiss Academy of Sciences expressed concerns that Alpine glaciers are unsustainable under these conditions in the long run. The trend of ice loss has intensified in recent years, with a nearly 20% decrease in ice volume across Switzerland over the past five years.
The report underscores the mounting evidence that global warming is significantly impacting Europe, the continent experiencing the fastest rate of warming worldwide. Matthias Huss, who leads GLAMOS, emphasized that the current warming is entirely due to human-induced climate change, particularly from fossil fuel emissions.
The critical role of winter snowfall was highlighted as a significant factor in glacier preservation. Snow cover acts as a protective shield against ice melting and supplies fresh ice formation. The prolonged presence of snow helps maintain existing ice and fosters the creation of new ice at higher elevations.
In addition to the challenges faced by the Alps, global warming has triggered destabilization events worldwide. In Nepal, a Himalayan slope collapse in August resulted in devastating floods, underscoring the broader impact of climate change on glacier stability. Similar alarming trends have been observed in Greenland and Antarctica over the past few decades.
Although the absolute volume loss in Swiss glaciers this year was lower than in 2003, the percentage decline was more significant due to the substantial reduction in total ice volume compared to 23 years ago. The report also highlighted the impact of accelerated ice melt on Switzerland’s water supply, equivalent to four times the country’s annual water consumption.
Notable Swiss glaciers like Allalin, Clarident, Rhone, and Aletsch, the largest in the Alps, experienced unprecedented melting this year. Experts emphasized the urgent need to reduce CO2 emissions to stabilize the climate and preserve glaciers. However, they cautioned that saving the Swiss Alps glaciers may be nearly impossible at this point, stressing the importance of taking action to mitigate sea level rise and protect coastal communities.