The amount of recycled content in cardboard boxes hit 48.4 percent in 2015, according to the Corrugated Packaging Alliance.
The amount of recycled content in cardboard boxes hit 48.4 percent in 2015, according to the Corrugated Packaging Alliance.
National parks welcome more than 300 million visitors each year, but less than half of those people actually separate their recyclables from their trash before leaving.