GreenFiber Cocoon Insulation: Energy Efficiency From Recycled Material

One of the simplest ways to improve a home’s energy efficiency and comfort is to make sure that it is properly insulated. Cocoon Insulation from North Carolina-based GreenFiber is a highly efficient insulator, offering more convenient installation and higher R-values than common alternatives, as well as utilizing recycled source material.

Best Portable iPod & MP3 Speakers

A few months ago, MetaEfficient profiled an energy efficient home speaker system for the iPod. But what if you want to bring your music with you on the go – and share it outside your headphones? You’ll need a set of portable speakers that are just as mobile as your MP3 player. Following are six of the best portable speaker …

GM And Segway Unveil Their Electric 2-Seater

Yesterday, GM and Segway unveiled an electric-powered urban vehicle called the Puma. The Puma seats two people, and is said to reach a top speed of 35 miles per hour. The vehicle can go 35 miles before needing a recharge. Larry Burns, vice president of research and development for GM, said it would cost about 35 cents to charge the …

Renewable: Sunglasses Made With Castor Bean Oil

The frames of these sunglasses (Dragon Experience Eco) are not made with petroleum. Instead they are made with Nylon 11, the only commercially successful high volume biopolymer, which is made by polymerizing a split segment of castor bean oil.