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davidc

davidc lives in Los Altos, CA.
davidc has reduced1.58 tons of CO2
Challenges taken
4
Users rallied
–
Challenges suggested
1
8votes
0comments on this profile

Active challenges

Change a Few Bulbs

Lasts 1820 days
1.56 tons
  • 10/31/2007 this challenge lasts until... 9 months until complete 1.56 tons

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