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Solar paint instead of panels?

Researchers at the University of Notre Dame have recently developed a solar paint.  The thought is that this paint could eventually replace solar panels, making solar energy far more affordable.  

The paint is made of "quantum dots" and it can be painted on any surface to produce power from the sun.  The little dots are semiconducting crystals which are 2-10 nanometers in diameter.  They're mixed into dye and it actually looks like normal paint!

Here's how they did it:  The scientists at the University of Notre Dame used nano-sized particles of titanium oxide and then covered them in cadmium sulphide or cadmium selenide.  They made a paste by putting the particles into a mixture of water and alcohol.  When the entire mixture was put on a conducting material and light was shone on it, the electricity was generated from it.  ... read more

Ikea's Stoughton, MA location - Keen & Green

Today I ventured to Ikea.  I'm really not a huge Ikea fan, mostly because the maze-like layout of the store annoys me and stresses me out.  I also don't live super close to this Ikea - it took me a little over a half hour to get there.  However, I do like their kitchen products and kid's stuff.   Today I wanted to do some holiday shopping for my son before Ikea got too hectic for the holidays.    

This was my first time going to the Stoughton, Massachusetts location and I was impressed to see how green it was.

I went specifically to get a wooden train set for my 2 year old.  It's a much less expensive knock-off of the Thomas the Train sets and compatible with Thomas trains, as well.  Most of the toys were wooden or cloth.  The plastic toys they had were mostly BPA-free.  The prices were reasonable, so I stocked up and my holiday shopping for my son is pretty much done! 

While there, I noticed signs mentioning that their Stoughton location has a green roof.  When I got back, I found some awesome pictures of the green roof.  Check them out at GreenRoofs.com.   Very cool!  ... read more

Free eWaste Recycling Event - Valencia, CA

Check out Planet Green Recycle's FREE e-Waste recycling event THIS WEEKEND in Valencia, CA!  All raised funds will go towards Sunshine Learning Centers!  Here's the Facebook event.    If you live in the area, definitely stop by and get rid of some old electronics!... read more

Latest stats on e-Readers

Check out this infographic from RetailMeNot.  It has all sorts of stats about e-readers and towards the bottom of the graphic there's some information about why e-readers are eco-friendly.    

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Oh What A Fueling - Buying A Used Electric Car

Happy Halloween Keen For Greeners!  Today we have a hilarious guest blog post from writer Richard Rossi about shopping for a used car.  

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I'm not mechanical in the least.  As a member of the television generation, everything I know about cars, fixing or buying, I learned from watching hours of TV.  Sitcoms, to be specific. ... read more

Exporting Computers

Most people are against exporting old computers to other countries, especially developing countries. There are plenty of organizations and people out there that are whole-heartedly against the idea of sending our old computers out of the country.

Exporting computers to developing countries isn’t always a bad thing. Sending our trash to them so they can just dump it in a landfill is obviously bad. Sending them useable machines to re-use doesn’t seem like a horrible idea.... read more

How we can use alternative energy more frequently

Today we have another guest blog post from Hasic M, who previously wrote the helpful guest blog post:  How To Recycle Mattresses.  This blog post discusses different types of alternative energy and how we can use them.

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The world as we know it cannot continue on as it is, simply because we are constantly damaging the environment more and more every day. The amount of waste generated by mankind is causing the Earth to deteriorate, as well as the pollution leaked into the atmosphere. One major concern is the amount of fossil fuels that we are using on a daily basis, which is why it is vital that we all do our part to use alternative energy more frequently.

There are many ways that we can all use alternative energy more frequently, and you will find that you can do your part to change the world one day at a time by using more alternative energy. Here are some of the main sources of alternative energy, as well as ways that you can use them more frequently in your life:... read more

Top New Fuel-Efficient Vehicles

toyota prius 2008

Consumer Reports recently came out with a list of the top 18 most fuel-efficient new cars which are currently being sold.  

With rising gas prices, even people who don't care so much about being green are looking into finding less gas-guzzling options.  And even for the eco-friendly of us, walking or relying on public transportation is not always realistic.  (Especially when much of the country doesn't have reliable public transit!)  Luckily there are plenty of options for fuel-efficient cars, as evidenced in the Consumer Reports list!

So, who made the cut?  ... read more

Power Consumption Infographic

I thought this infographic was pretty interesting.  It answers some important questions, such as which countries and states consume the most energy, which household items consume the most electricity, and how to save energy.   Some of the info surprised me...for instance, I had no idea that a hair dryer uses as much energy as an air conditioner!  

Thanks to Power SuperSite for putting together such a useful graphic!  ... read more

San Francisco Electric Plug-In Car Project Faces a Few Roadblocks

San Francisco Electric Vehicles

Plug-in electric vehicles are becoming more affordable, available, and popular. Leading “green” city, San Francisco, passed legislation to help increase the convenience of electric vehicles in hopes of enticing residents to purchase the green cars. The city is challenged with the task of installing 80 public charging stations at 20 locations by 2012.

The city has been working for roughly two and a half years to implement the charging station policy and necessary infrastructure. ... read more