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Eco-photos of the week: July 24-30

July 29, 2011, 7:04 a.m.
Guerilla-knitted bicycle

Photo: ZUMA Press

5 of 17

Guerilla knitting

A "knitted" bicycle sits in downtown Saarbruecken, Germany, on July 24. Guerilla knitting, also known as "knit graffiti" and "yarnbombing" involves knitting around everyday objects like trees, pillars and statues.