Roundup: Venezuela, Peru, and the Storglaciären

The Death of a Venezuela Glacier

The Economist: “Venezuela is a tropical country, with rainforest in the south and east, and baking savannah stretching towards its northern Caribbean coast. The Sierra Nevada de Mérida mountain range in the north-west offers relief from the heat. In 1991 five glaciers occupied nooks near their peaks. Now, just one remains, lodged into a cwm west of Pico Humboldt. Reduced to an area of ten football pitches, a tenth of its size 30 years ago, it will be gone within a decade or two. Venezuela will then be the first country in the satellite age to have lost all its glaciers.”

Read more about Venezuela’s Humboldt Glacier here.

The Humboldt Glacier in Venezuela (Source: The Photographer/Creative Commons).

Small-Scale Farmers’ Vulnerability in the Peruvian Andes

From Iberoamericana: “Previous studies have shown that climatic changes in the Peruvian Andes pose a threat to lowland communities, mainly through changes in hydrology. This study uses a case study approach and a mixed qualitative-quantitative method to examine the vulnerability of small-scale farmers in the Quillcay River basin to variations in precipitation and enhanced glacier retreat. The findings of the study show partly contradicting results. On one hand, interpretation of semi-structured interviews suggests a strong relation between climate proxies and increased vulnerability of the smallholders. On the other hand, in the quantitative analysis enhanced glacier retreat seemed to have augmented vulnerability solely to some extent whereas precipitation did not show significant impact.”

Learn more about climate change in the Peruvian Andes here.

Small-scale farmers in the Peruvian Andes sowing maize and beans (Source: Goldengreenbird/Creative Commons).

 

A Glacier-Permafrost Relationship in Sweden

From Quaternary Research: “Here, we present empirical ground penetrating radar (GPR) and electroresistivity tomography data (ERT) to verify the cold-temperate transition surface-permafrost base (CTS-PB) axis theoretical model. The data were collected from Storglaciären, in Tarfala, Northern Sweden, and its forefield. The GPR results show a material relation between the glacial ice and the sediments incorporated in the glacier, and a geophysical relation between the ‘cold ice’ and the ‘temperate ice’ layers…The results show how these surfaces form a specific continuous environmental axis; thus, both glacial and periglacial areas can be treated uniformly as a specific continuum in the geophysical sense.”

Read more about the study at Storglaciären here.

The Storglaciären or “The Great Glacier” in Sweden (Source: SAGT/Flickr).
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