If you are in the market for a new cell phone, consider the radiation. Follow the related link for a top 10 list and more information.

A study done by NAVTEQ, a navigation system data provider, found that using GPS systems with real-time traffic information can save drivers four days a year of driving time and can cut emissions by 21 percent.

The end is near for the standard filament style light bulb. In Europe, it has been officially banned. Existing supplies are allowed to be sold, but that will be the end. The U.S. has a plan for banning the bulbs in 2012.

This is a good reason to keep replacing the lights you use for general area lights with more efficient types. This incremental transition will be easier on your pocketbook.

Hope for improvements in LED's they are probably the next best bet.

As many people make an effort to help the environment and make healthy choices, they opt for a re-usable water bottle. However, all water bottles are not created equal. In fact one company has recently shared that the liner of the aluminum bottle contains small amounts of bisphenol-A, (BPA), the very reason to avoid plastic bottles! What is going on is simple, there is essentially a plastic bottle inside the aluminum bottle.

Inside the bottle is a liner to keep your liquid separate from the aluminum. Adding hot liquid or simply aging, can cause the BPA to leach out. Sigg has offered to exchange the bottle if you have the old liner. Note, the liner ingredients are a trade secret, just like the first time. It is easy to recognize the new liner, they changed the color from a copper or bronze to a pale yellow.



Even though Sigg has changed their liner, this does not mean other manufacturers have. A safe bet is stainless steel. And according to the article, Kleen Kanteen, ThinkSport, and Nalgene all sell stainless steel water bottles that are BPA-free and, most importantly, don't have any liners (so there aren't any potentially dangerous secret ingredients to worry about).

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This improvement may seem obvious when you hear it, but someone had to be first to do it. Researchers in Golden Colorado have been developing a metal alternative to the large glass mirrors on solar concentrators. The metal mirror is significantly lighter weight and reduces the cost of the mirror and support structure.

This improvement may reduce the cost of producing the equipment by as much as 25 percent. This is a significant improvement.

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