The Best Shower Filters Of 2011

I just replaced my shower filters, so I thought I’d update my best shower filter review from earlier this year. Each update to the review generates a lot of useful comments. So I’m incorporating what I’ve learned from those comments into this latest review.

How To Stay Efficiently Cool This Summer

Summertime is almost here, but hot weather doesn’t have to mean skyrocketing power bills and nonstop air conditioning. We’ve compiled these tips to help you maximize your summer comfort and energy efficiency.

2010 Review Of Tankless Water Heaters

Tankless water heaters have been used in Europe and Asia for 50 years, and they are gaining popularity in the US. Right now they represent about 8% of new sales in the US. Tankless heaters, also called on-demand, flash or instant water heaters, qualify for a $300 federal tax credit. How efficient are tankless water heaters?

Chicago’s Green Alley Initiative

Urban alleyways. Grubby places that only scrappy cats or cop-show perps could love, right? Not in Chicago, where the Department of Transportation is giving them some serious TLC with its recently implemented Green Alley Program. This city-wide renovation initiative will offer some surprising environmental benefits and improve quality of life for residents.

Chlorine Alternatives For Efficient Swimming Pools

Cannonball! Jumping into a swimming pool is a classic way to beat the heat on a hot summer day. But clean pool water requires a combination of filtration, circulation, and sanitization. Chlorine has long been the most common tool for keeping pools free of bacteria and algae – but it has its drawbacks, and there are alternatives.

Windows That Double As Solar Panels

MIT researchers have announced that they have created “organic solar concentrators” that could make windows become powerful solar panels in as little as three years. The concentrator is mixture of two or more dyes painted onto a pane of glass or plastic. The dyes absorb light across a range of wavelengths, re-emit it at a different wavelength and transport it …

High Speed Trains In The U.S.: A Matter Of Efficiency

With the high speed rail debate officially jumping the tracks into the political arena, American citizens are left to sort through the onslaught of bureaucratic bantering which so often leads to misinformation. The question that’s causing tempers to flare on both sides is whether the government should be funding high speed rail projects across the nation. Many believe that high …

The Best Toasters of 2014

What makes a toaster efficient? Read through reviews of popular toasters, and you’ll see that many people seem to care more about the bells and whistles — automatic lowering of bread, pleasant dings when toasting is complete, and the like — than anything else.

Costa Rica Is 99% Powered By Renewable Energy

CNFL-wind-power-Costa-Rica

Costa Rica is a country rich with renewable energy. In fact, it gets about 99% of all its electrical energy from clean sources, and it’s aiming to be the first country to become carbon neutral (more about that below). Some of Costa Rica’s energy sources include geothermal energy, the burning of sugarcane waste and other biomass, solar and wind energy. …

$2 Billion Wind Turbine Order Is Largest Ever

Texas oilman T. Boone Pickens has placed an the largest ever order for wind turbines: he ordered 667 wind turbines from GE, each costing $3 million dollars, making the total order $2 billion. Pickens plans to develop the world’s largest wind farm in the panhandle of Texas.