Climate experts pledge to scale up high-altitude fight against mountain melt

NASA Jorge Montt Glacier, Southern Patagonian Ice Field, Chile. Photo: NASA

This article is brought to you in association with the United Nations.


The UN’s weather watchdog and partners committed on Thursday to a new initiative to ramp up observation and prediction technology that will help address the challenges of climate change, melting snow and ice, and water-related hazards.

In a call for action at the end of this week’s High Mountain Summit to tackle the global warming causing glaciers to retreat, along with snow fields, permafrost and associated ecosystems – collectively called the cryosphere – the World Meteorological Organisation (WMO) and partners announced they would step up commitments on the issue of water security and natural disasters linked to melting ice in mountain regions.

Changes across the world’s peaks are altering the cryosphere, and impacting the flow of freshwater, which meets the needs of more than half of humanity – they are, in effect, “water towers of the world”.

In addition, the problem of disappearing ice caps is stretching from mountainsides to urban communities downstream, as glacial melt-dependent pastures becomes parched, and avalanches, floods and other disasters snuff out lives and weaken local economies.

WMO pledged to lead the effort to stop the trend at the conclusion of the three-day summit in Geneva, to address these changes to water systems and supply.

To improve high mountain observations that could better-forecast potential disasters and prompt lifesaving action, WMO will provide leadership and guidance in an Integrated High Mountain Observation and Prediction Initiative as part of its call to action, entitled “Avoiding the Impending Crisis in Mountain Weather, Climate, Snow, Ice and Water: Pathways to a Sustainable Global Future.”

The initiative to boost climate disaster prediction and resilience is a tool that will help in “tackling the climate crisis, evaporating snow and ice, and water-related stress.”

WMO said that sustainable mountain development and ecosystem conservation should be “integral” in international development policy, and in addition, more transboundary data sharing and prediction communications will be critical in safeguarding high mountain regions.

One of the world’s greatest challenges

More than 150 summit participants from around the globe highlighted the natural hazard and water insecurity impacts of glacial snow melt in their communities.

In Switzerland, glaciers have lost 10 per cent of their volume in the last five years, two per cent of which diminished in the last year alone. By the end of the century, 90 per cent of the nation’s remaining 4,000 ice sheets may melt, the Swiss Federal Councillor revealed.

The summer of 2019 saw such intense heat waves, the equivalent of Switzerland’s annual drinking water consumption melted from its glaciers in just 15 days.

Water security is becoming “one of the greatest challenges of the world’s population” the summit declaration says, “and the uncertainties on the availability of freshwater from mountain rivers is a significant factor of risk for local and downstream ecosystems, agriculture, forestry, food production, fisheries, hydropower production, transportation, tourism, recreation, infrastructure, domestic water supply, and human health.”

International observations show an acceleration in the retreat of 31 major glaciers in the past two decades. But lack of sufficient data hinders reliable monitoring.

The summit noted the scarcity of meteorological, cryosphere and related observations in mountain regions, but stressed the potential of space-based surveillance.

A September report by the UN’s Intergovernmental Panel on Climate Change (IPCC), outlined the growing burden of the changing climate, its strain on water systems and the impacts on various species, livelihoods and economies, which served as the springboard for the summit dialogue.                      

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Comments

  1. richard burcik says:

    The world-famous philosopher of science, Karl Popper, insisted that to be a valid scientific theory any hypothesis must be falsifiable. This includes the widely held conjecture of anthropogenic (human-caused) climate change. In short, a single set of scholarly findings that is not explained by the premise of man-made global warming which is attributable to the burning of fossil fuels can falsify this entire body of scientific speculation and this has recently occurred. Last summer the third of three peer-reviewed scientific papers that were conducted by three separate groups of expert investigators from three different universities and which have been published in eminent peer-reviewed scholarly journals have found no evidence to support the assertion regarding human-induced climate change. Instead, all three groups independently found that the warming that has happened was almost entirely attributable to galactic cosmic rays that affect the quantity of the Earth’s low hanging clouds. These expert investigators call this canopy or blanket the “umbrella effect”. The bottom line is that the entire climate change hysteria has now been falsified and is untrue. These three experimental results have conclusively shown that the IPCC and its computer simulation models (GCMs) are not valid.

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