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c.ixchel's picture
June 1, 2007 - 12:57pm — c.ixchel

efecto invernadero

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.... mas sobre el calentamiento global
  • 4 min 12 sec
c.ixchel's picture
June 1, 2007 - 12:52pm — c.ixchel

calentamiento global

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aqui les motstramos un video de la NASA, que explica algunas de las consecuencias del calentamioento global
  • 1 min 53 sec