A new, physical music format offers another alternative to CDs.
Since sunlight and wind can be unreliable, renewable utilities install big backups.
Trials of a new air-cushion technology show that it could reduce the energy consumption of large ships, limiting CO2 emissions.
Despite environmental message, many stick up their noses at eco-toilets.
Column: How a decline in tiny water-based plants is hurting penguin populations.
Apple's new iPod shuffle, priced at $79, is nearly half the size of the previous model and the first that talks.
The International Space Station’s narrow miss last week highlights the risk of collisions with space junk.
At least nine major car companies promise plug-in vehicles by 2013.
The Persian Gulf emirate of Dubai, already the site of pioneering hotel and residential construction projects, plans to build the world's largest arch-supported bridge over one of its waterways.
Reformers push to limit what is protected.