“We want to ensure that the bricks have the longest possible life,” says Brooks, as he lays out the goals of, in which second-hand Lego pieces are returned to the company, sorted, washed, repackaged and—at present—donated to children. Lego declined to clarify exactly how many people are employed in this effort, which is currently live only in the US and Canada. The scheme sometimes requires disassembly of Lego sets, and sorting of bricks both by machine and by hand. Quality control is key.
, including three Lego sets, a Barbie doll, a Jenga game and two plush dog toys. The study made multiple assumptions, including about the transportation required for each item, and estimated that the largest Lego set, a Star Wars fighter ship, had the highest greenhouse gas emissions of all the toys—due to the volume of ABS. A Lego spokesman describes the work as “flawed” and says assumptions about the playing time associated with the toys do not represent the long life of its products.
Klimas points out that the analysis was based on international standards for product life-cycle assessments, and, in additional estimates provided to WIRED, she adds that once the three Lego sets are played with for between 32 and 64 hours, the carbon footprint of each product, per hour of play, becomes “practically negligible”, despite the considerable size difference between them .
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