Plastic shopping bags are derived from crude oil. And billions of our plastic bags every year are not recycled, which means they end up in landfills or, worse, as urban tumbleweeds. They take centuries to decompose and as they slowly break down, they disintegrate into tiny plastic pellets called nurdles, which are ingested by many animals with deadly results.  Watch this 4-minute mini-mockumentary from Heal The Bay, narrated by Academy Award-winner Jeremy Irons. This video, called The Majestic Plastic Bag, hammers home the stark reality of plastic bag pollution. And here’s how to kick the plastic bag habit.