Whole Foods announced it will only offer customers 100-percent recyclable paper grocery bags, in a move designed to bolster the company’s green credentials. The Boulder Daily Camera reports, “As part of the effort to cut out single-use plastic bags — which are petroleum based and can take more than 1,000 years to break down in a landfill — Whole Foods stores will sell canvas bags and a new reusable plastic sack for 99 cents.”