• Two mature trees provide enough oxygen for a family of four.
• One acre of trees removes 2.6 tons of CO2 per year.
• About one third of the United States of America is covered by forests
• The average tree in an urban area has a life expectancy of only 8 years. More ...
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Carbon Day on 15 Sep 2010 05:00 in 5 days and 15:39 hours.
Carbon Day Boston more » on 15 Sep 2010 10:00 in 5 days and 20:39 hours.