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Arctic ice cover extent Arctic ice cover extent
The greatest reduction in Arctic summer sea ice extent since satellite observations began occurred in 2007, with the following two years experiencing the second and third biggest reductions. The Greenland ice sheet is currently losing more than 250 cubic km a year – faster than can be explained by natural melting.
03 Feb 2010 - by Riccardo Pravettoni, UNEP/GRID-Arendal
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Glacier recession and expansion in Hindu Kush-Himalayas and Central Asia Glacier recession and expansion in Hindu Kush-Himalayas and Central Asia
Averaged over their entire areas, within the period 1960– 2003 glaciers in Patagonia and Alaska have thinned by ap- proximately 35 m and 25 m, respectively, whereas high mountain glaciers in Asia have thinned by over 10 m. Data for Patagonia and Alaska are computed from glacier surface elevations for dozens of glaciers. In many other high moun- tain environments such as the Himalayas and the high Andes, where data are limited due to bo...
06 Dec 2010 - by Riccardo Pravettoni
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Fire events in Tripa Fire events in Tripa
Although the burning of peat is forbidden by Indonesian law, more than 458 fire hotspots have been detected by satellite in Tripa during the last 10 years, the vast majority being located within palm oil concessions.
13 Sep 2011 - by Riccardo Pravettoni, UNEP/GRID-Arendal
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Conversion of forests to different land uses Conversion of forests to different land uses
Using satellite images, land use changes were determined at Batang Toru (2001-2009) and Tripa (2001-2009) to calculate overall CO2 emissions. Deforestation in both areas led to different land use transitions, with the predominant land use in Batang Toru after deforestation being disturbed forest and in Tripa, oil palm plantations.
13 Sep 2011 - by Riccardo Pravettoni, UNEP/GRID-Arendal
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