Lego's Quest to Eliminate Plastic Hits Roadblock as Recycled Bottle Bricks Backfire

Lego tried making bricks from recycled plastic bottles but found it worse for the environment.

The new material required new machinery, increasing carbon emissions.

Lego had pledged to eliminate petroleum plastics by 2030 but it's proving difficult.

Lego previously replaced 20% of oil-based plastic with plant-based plastic.

Experts say eliminating the remaining 80% of oil-based plastic is a "bridge too far".