Plastic water bottle caps are color coded based on the type of water: blue caps indicate "spring water"; black caps signify alkaline water; green caps signal flavored water, and white caps mean ...

Because, according to new guidance from the Association of Plastic Recyclers (APR), caps and bottles not only get along just fine in the same bin, there's a big demand for both. What's this, you say?

To get started, gather clean plastic bottle caps that are identical in size, a piece of cardboard, and a hot glue gun. You can make a small laundry basket with 400 to 500 soda bottle caps and ...

For those who recycle, it starts with your driveway, with the blue curbside bins and plastic bottles that may or may not have the caps screwed on top. While the city of Phoenix may collect your ...

This novel solution was found in perhaps the lowliest of leftover refuse that our throw-away society produces in annoying excess — the plastic bottle cap. It's the brainchild of Austin Fox and ...

The movement to tether bottle caps echoes a similar movement in the 1970s fighting for a replacement of detachable can pop-tops with attached “stay-tops.” At the time, littered pop-tops created an ...

Inside a New Mexico lab, researchers estimate there is five bottle caps worth of plastic in human brains. Now they are trying to find out its effects.