 What's your ecological footprint???created by juanma 10.05.2011 21:39 • last reply by Tashina 24.06.2011 10:29An ecological footprint is a measurement that tells you how much impact an individual or a population has on the environment.... | 5 posts |
| What's your ecological footprint??? created by juanma 10.05.2011 21:39 • last reply by juanma 10.05.2011 21:39An ecological footprint is a measurement that tells you how much impac | 1 posts |
| Lt's put our knowledge together =) created by australena 22.07.2010 14:30 • last reply by Mario 18.04.2011 12:14I thought it would be a good idea to put our knowledge togethe... | 4 posts |
| Burning fallen leaves created by ethanhunt007 04.04.2011 10:49 • last reply by Henko 10.04.2011 17:31The cleaning workers in China burn the fallen leaves to keep the street neat but the air condition gets worse .I wonder wheth... | 5 posts |
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