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Climate Change in the tropical Andes – Impacts and Climate Change in the tropical Andes – Impacts and consequences for glaciation and water resources consequences for glaciation and water resources Part I: The scientific basis

This report provides the scientific basis regarding climate change and glaciers in the tropical Andes. It is meant to facilitate a discussion amongst policy makers and local stakeholders, who are in charge of implementing adaptation and mitigation strategies. Such measures, designed to alleviate the magnitude and impacts of climate change, can only be put in place with an accurate and detailed knowledge on how future climate change will affect glaciological and hydrological systems in the Andes. Therefore it is important to first summarize the current state of knowledge regarding climate change, tropical glaciology and potential future impacts on Andean water supply.

The document includes glacier observed glacier variations, glacier mass balance, surface energy balance, observed and projected climate change and implications for water resources for tropical glaciers in Venezuela, Colombia, Ecuador, Peru and Bolivia.