Stuck with an abundance of old cassette tapes, one family explores some creative reuse options.

An internal combustion unit that produces gas or steam, or that changes mechanical energy into electrical energy. As most electrical generators are gasoline-powered, they can be a source of air pollution, emitting carbon dioxide in particular.

A geographical zone for reporting and displaying air emissions information. Grid sizes vary depending on their use.

The arrangement or partitioning of land areas for various types of usage in cities, boroughs or townships.

A naturally occurring metal that is found in many types of rocks. Pure manganese is silver-colored, but does not occur naturally. It combines with other substances such as oxygen, sulfur, or chlorine.

Collecting and sending e-waste is made simple with GreenDisk’s ‘technotrash’ recycling program.

U.K.-based Jeremy May’s pieces of one-of-a-kind book jewelery are a combination of artistic beauty and topnotch reuse.

Worldwide aluminum recycler Alcoa recently partnered with 1-800-RECYCLING.com to debut a new kind of recycling iPhone app that is quickly winning over greenies and inspiring others to jumpstart their recycling efforts. With the Aluminate app, now available to download for free in the Apple App Store for iPhones, iPod Touches and iPads, Alcoa has combined [...]

Broken Bog has been recycling toilet wares for the past 30 years, thus preventing the unnecessary replacement of whole bathroom suites due to one broken piece.

Also known as 2-Hexanone, methyl n-butyl ketone, MBK, or propyl acetone, it is a clear, colorless liquid with a sharp odor. It was used in the past in paint and paint thinner, to make other chemical substances, and to dissolve oils and waxes. It is no longer made or used in the United States because it has harmful health effects.

Chemicals that are either naturally occurring or identical to naturally occurring substances. Examples include hormones, pheromones, and enzymes.

An all-encompassing term used to describe pollution control devices and systems, waste treatment processes, storage facilities and site remediation technologies and their components. It applies to any technology used to remove or prevent pollutants or contaminants from entering the environment.