quiz

Americans buy about 3 billion batteries each year, half of which are AA and 30...

This week’s quiz draws on the many amazing facts collected by Circular Ecology’s Inventory of...

Our oceans serve as a buffer to global warming by absorbing much of the heat...

Every day, we’re presented with recycling questions. Does this bottle go in the recycling bin...

While the nation is ideologically divided on climate change, people throughout our history have acted...

The mobile phone has become an indispensable tool of modern life, and new models appear...

The U.S. recycling system uses a “single-stream” model that focuses on the big blue curbside...

Everyday activities — like driving, choosing clothes and food at the store, or barbecuing in...