When every online order results in another empty box, all that cardboard stacks up. Here's how to recycle it at the curb or a local collection site.

San Francisco's trash tonnage increases by about 15 to 17 percent around the holidays. This year a lot of that extra waste will show up in blue recycling bins as small- and medium-size cardboard boxes ...

New York's Central Park has a special recycling bin specially designed for cardboard pizza boxes. The new bin — with a V-necked opening — makes it easy to slide in the box. Now New York has a ...