Bricks won’t break down

Because they’re made of plastic, Bricks take a long time to break down naturally. Plastics, such as those used in grocery bags, take about 100 years to break down in nature. However, colored blocks are made of a special plastic called ABS (acrylonitrile butadiene styrene). Because it is a thermoplastic polymer with unique properties, extreme temperatures or large amounts of UV light are required to initiate the degradation process.