Wal-Mart "Coke Shirts"

As any aspiring “green” consumer knows, it’s not easy being green. No matter how much you want to help save the planet, economics often prevail. It’s simply cheaper to abuse the Earth than to buy pricey products that claim to promote sustainable living. That’s why Wal-Mart’s sustainability efforts, promoted this month in a new campaign timed to Earth Month, seem so promising. Here, two teen girls talk about their new Coca-Cola-branded T-shirts, made with RPET, a material made out of recycled products.