单词：water-bouge
单词：water-bouge 相关文章
By piecing together the evidence these creatures left behind, we can build a picture of this sub-tropical corner of the continent as it was 13,000 years ago. While most of North America was still in the grip of the Big Freeze, Florida was an ice age
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This triggered other dramatic changes. As sea levels dropped, so did the inland water tables. Florida's fresh water drained away through the porous limestone rock. Pools dried up and springs diminished. Florida was on the brink of drought. And animal
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Residents of Nairobi Slums Face Daily Water Challenges When the water tap threatens to run dry in this Nairobi slum, tensions rise. Women, waiting for their turn to fill their 20-liter containers of water, fight as they fear not being able to fill he
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Indigenous People Vulnerable to Climate Change Researchers say indigenous people are among the most vulnerable to climate change. Theyre studying how extreme weather events can trigger more disease outbreaks. Scientists say extreme weather events hav
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Polar Scientist Charts Melting Caused by Climate Change Michael Gooseff follows water to the end of the earth. The Pennsylvania State University hydrologist works in remote regions of the Arctic and Antarctic, where ice and frozen ground are thawing.
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In Colorado, Solar Industry Faces Challenges Colorado's San Luis Valley, an alpine desert, is rapidly becoming a leading producer of solar energy in the United States. The sun shines more than 340 days a year in the San Luis Valley. So the solar indu
VOA标准英语2011年(十二月)