本帖最后由 人与自然 于 2012-11-27 02:01 编辑
Yesterday was Earth Day, a time set aside to increase awareness of the natural environment and the impact of our collective actions. In honor of Earth Day, gathered here is a collection of scenes of our home planet from above, from vantage points we don't see in everyday life. These scenes help show the Earth as a larger system and demonstrate the extent to which human activity has affected it. [ 39 photos]
A view of Earth, the stars, and red and green auroras above cities in western North America, as seen from the International Space Station, on February 19, 2012. (NASA)
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Australia's Lady Elliot Island, seen on January 14, 2012. Lady Elliot Island is one of the three island resorts in the Great Barrier Reef Marine Park. The island of approximately 100 acres lies 46 nautical miles north-east of the Queensland town of Bundaberg and is the southern-most coral cay of the Great Barrier Reef. (Mark Kolbe/Getty Images) #
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Flooded valleys line Lake Nasser, in Egypt. Lake Nasser was formed after the completion of the Aswan High Dam across the Nile River in 1970. (© DigitalGlobe, Google, inc.) # | 
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