You missed the part where this produces CO2. And it's producing CO2 from a petro...

philwelch on July 30, 2009 | parent | context | favorite | on: Teen Decomposes Plastic Bag In 3 Months

You missed the part where this produces CO2. And it's producing CO2 from a petroleum product, which means this is CO2 that's been out of the carbon cycle for millions of years, which means it's all net CO2.