ABC News Online, Posted Tue Jul 7, 2009
http://www.abc.net.au/news/stories/2009/07/07/2619113.htm?site=news
Satellite imagery is providing a clearer picture of the impact of climate change on a sub-Antarctic Heard Island.
Tasmanian scientists have been using the technology to monitor the island from afar.
Over the past few decades, glaciers have retreated and there have been extensive changes to vegetation on the World Heritage-listed island.
University of Tasmania Lecturer Arko Lucieer says the images show the changes are now rapid.
One of the main glaciers, Stephensons Glacier, retreated more than three kilometres in five years.
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