 Date: 2012-07-12 19:42:12Tundra Alps Parnassius smintheus Alpine plant Tree line Alpine Ice age Glacier National Park Glacier Physical geography Climate Pika | |  N e w s Fo c u s Biologists say climate change may already be affecting high-mountain ecosystems around the world, where plants and animals adapted to cold, barren conditions now face higher temperatures and a surge of
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