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Indicator Specification
Glaciers are particularly sensitive to changes in the global climate because their surface temperature is close to the freezing/melting point. When the loss of ice, mainly from melting and calving in summer, is larger than the accumulation from snowfall in winter, the mass balance of the glacier turns negative and the glacier shrinks.
Glaciers are an important freshwater resource and act as ‘water towers’ for lower-lying regions. The water from melting glaciers contributes to water flow in rivers during summer months and thus helps maintain water levels for irrigation, hydropower production, cooling water and navigation. The effects of a reduction in glaciers are, however, complex and vary from location to location. Glacier melting also contributes to global sea-level rise.
In April 2013 the European Commission presented the EU Adaptation Strategy Package (http://ec.europa.eu/clima/policies/adaptation/what/documentation_en.htm). This package consists of the EU Strategy on adaptation to climate change /* COM/2013/0216 final */ and a number of supporting documents. One of the objectives of the EU Adaptation Strategy is Better informed decision-making, which should occur through Bridging the knowledge gap and Further developing Climate-ADAPT as the ‘one-stop shop’ for adaptation information in Europe. Further objectives include Promoting action by Member States and Climate-proofing EU action: promoting adaptation in key vulnerable sectors. Many EU Member States have already taken action, such as by adopting national adaptation strategies, and several have also prepared action plans on climate change adaptation.
The European Commission and the European Environment Agency have developed the European Climate Adaptation Platform (Climate-ADAPT, http://climate-adapt.eea.europa.eu/) to share knowledge on observed and projected climate change and its impacts on environmental and social systems and on human health; on relevant research; on EU, national and subnational adaptation strategies and plans; and on adaptation case studies.
No targets have been specified.
Various methods are used to estimate mass balances. A literature overview can be found under http://www.wgms.ch/literature.html .
Projections of volume changes are based on melt in response to transient, spatially differentiated twenty-first century projections of temperature and precipitation from ten global climate models.
Not applicable
Data on the cryosphere vary significantly with regard to availability and quality. Snow and ice cover have been monitored globally since satellite measurements started in the 1970s. Improvements in technology allow for more detailed observations and higher resolution.
Further information on uncertainties is provided in Section 1.7 of the EEA report on Climate change, impacts, and vulnerability in Europe 2012 (http://www.eea.europa.eu/publications/climate-impacts-and-vulnerability-2012/)
No uncertainty has been specified
Work specified here requires to be completed within 1 year from now.
Work specified here will require more than 1 year (from now) to be completed.
For references, please go to https://www.eea.europa.eu/data-and-maps/indicators/glaciers-1 or scan the QR code.
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