Whitening the world's roofs would offset the emissions of the world's cars for 20 years, according to a new study from Lawrence Berkeley National Laboratory.

Overall, installing lighter-colored roofs and pavement can cancel the heat effect of two years of global carbon dioxide emissions, Berkeley Lab says. It's the first roof-cooling study to use a global model to examine the issue.

Smart house tech is about to go a step beyond your average energy-efficiency monitoring systems. What about a house that prepares a fresh pot of coffee when you wake up, plays your favorite music without being told to, and sets the thermostat to your ideal setting? Now that's smart.

Smart-home researchers in the UK want to test systems that rely on "ambient intelligence" -- systems that can learn your preferences and behavior and adjust conditions accordingly, according to Greenbang, a London-based sustainability blog.

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Here’s a novel way to get a little more out of time spent in the bathroom. An industrial design student at De Montfort University in Leicester, UK, has created a clever power generator that turns falling wastewater into electricity. The HighDro Power is a waterwheel-like turbine that can be incorporated into the pipes of tall buildings to turn one man’s waste into another man’s wattage.

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No matter how well your house is insulated, if there are cracks and gaps, the air you just paid to heat or cool will quickly be lost. But air sealing is easy and relatively cheap as long as you know what areas to attack with the caulk gun.

To get a better undrestanding on how to improve you energy consevation and save some money, read the full article at www.re-nest.com

Do you know that there are great opportunities to find bargain deals in the residential market in the Orlando area, including Osceola county,Seminole county,lake county,Orange county,Polk county.

The Realtor Association in Central Florida has more than 5000 properties for sale under $ 50.000.00 dollars, most of them are in a Short Sale process.

In the past decade many alternative energy sources have come to the forefront of the energy crisis debate.  Corn, sugarcane, switchgrass, grains, wheat, cotton, etc have all been used to create alternative energy sources in recent years, but few people have anticipated the research and development impact produced by the next alternative energy source.  Algae have emerged as one of the leading sources of stored and renewable energy.  The system is not perfect due to the environmental footprint caused by the processes continued need for nutrient and water consumption.  We all know our dependency on oil and other fossil fuels will not be solved by a single solution.  It will be solved by integrating multiple renewable energy sources into our energy resource network; however, a 180 degree switch in our energy acquisition paradigm must be made to make this a reality.