IMPACTOS
  • Impactos
  • videos e imaxes
  • enlaces interesantes
http://www.slideshare.net/guestdb3d8d5/el-aumento-de-residuos
http://www.jmarcano.com/recursos/contamin/catmosf.html
http://www.cambioclimatico.org/
http://epa.gov/acidrain/education/site_students_spanish/index.html
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