100 Private Companies That Lead in GoingGreen

The AlwaysOn Network recently announced their Third Annual List of the GoingGreen 100 Top Private Companies of 2009. The award recognizes the top private greentech companies that are creating new business opportunities and transforming the world’s largest industries to improve sustainability.Among the hundreds of companies evaluated, They selected the Oakland California-based, Brightsource Energy, a provider of solar energy to utility companies, as the overall winner.

Cost/Benefit Analysis for Cool Roofs

We’re doing a remodeling project which includes installing a new roof. Here in California, we get a lot of sun, so the impact of solar irradiance on solar heat gain is a major concern — either for A/C costs (and thus peak summer energy loads) or on comfort (for those of us who don’t have A/C). Thus, I’ve been looking into solar reflectivity and what has been called the “cool roofs“ movement. There is the Cool Roof Rating Council, “created in 1998 to develop accurate and credible methods for evaluating and labeling the solar reflectance and thermal emittance (radiative properties) of roofing products and to disseminate the information to all interested parties.”

Who are The Most Promising Clean Technology Companies on The Planet

The Guardian and Cleantech Group recently announced the Global Cleantech 100. This is the first ever list of this scale highlighting the most promising private clean technology companies around the world. The Global Cleantech 100 recognizes companies at the forefront of cleantech innovation offering solutions to some of the world’s most pressing environmental challenges. The final list represents the collective opinion of hundreds of leading experts from cleantech innovation and venture capital companies in EMEA, North America, India and China.

Sierra Magazine Names Top 20 Most Eco-Enlightened Cool Schools

Last week, Sierra Magazine named the nation’s top 20 “coolest” schools for their efforts to stop global warming and operate sustainably.     The magazine’s September/October cover story spotlights the schools that they believe are making a true impact for the planet, and marks Sierra’s third annual listing of America’s greenest universities and colleges. The […]

Climate Change Denial and Energy Ignorance: A Pair of Albatrosses that Prevent Needed Policy Changes

This, the fifth article in the series The Two-Headed Dragon ~ Energy/Water/Food Scarcity and Climate Change. Top Ten Policies that Feed it, and Two New Technologies that Could Enable us to Slay It and Save the Planet discusses why the short term mindset that prevails in our culture is preventing us from addressing the existential problems of climate change and rapidly disappearing fossil energy reserves. It touches on our nation’s irrational tax code, which provides a powerful incentive for wasteful practices and continued reliance on fossil fuels. It also suggests that the profound ignorance in energy matters is one of the key reasons why we have such poor energy policy, suggesting that our politicians should attend an energy boot camp and learn the fundamentals of energy.

The Greenest Cities in America

The Natural Resources Defense Council (NRDC) recently announced their list of the greenest cities in the United States and have released their findings on a new web site, called Smarter Cities. The survey includes all cities in the United States with populations larger than 50,000. Smarter Cities is considered to be one of the nation’s most comprehensive and robust database of U.S. urban progress toward sustainability. Seattle ranked number one and San Francisco ranked number 2 among the 67 large cities that were evaluated. Madison, Wisconsin placed firstand Santa Rosa, California came in second among the 176 medium cities that were surveyed. Among the 402 cities that were evaluated, Bellingham, Washington came in first place and Mountain View, California came in second.

Greenopia Ranks 50 State Governors for Environmental Responsibility

Greenopia recently released a comprehensive ranking of 50 governors in the US and compared their policies, transparency, and interest group ratings to determine which governors were eco-leaders and reveals which state governments are most dedicated to preserving the environment. Topping the list is Governor Bill Ritter of Colorado followed closely by Governor Arnold Schwarzenegger of California.

Messing with Mother Nature—Building Dams and/or Levee Systems on Medium and Large River Systems

This, the second article in the series The Two-Headed Dragon–Energy/Water/Food Scarcity and Climate Change — the Top Ten Policies that Feed It; Two New Technologies (and One Old) that Could Enable us to Slay It and Save the Planet focuses on the unintended side effects of large dams and levee systems. It specifically discusses how they are causing serious environmental problems downstream that are becoming more damaging than the benefits that these dams and levee systems provide. In many ways this cautionary tale is applicable to many other technological and large scale engineering interventions into natural systems, especially when these technologies and engineered systems are not well understood.

Algenol Biofuels and DOW Announce Pilot Project to Produce Ethanol from CO2, Salt Water, Sunlight and non-Arable Land

Algenol Biofuels, a Florida biofuels startup and DOW Chemical Company announced a pilot-scale algae-based integrated biorefinery that will convert CO2 into ethanol. The patented technology developed by Algenol Biofuels uses CO2, salt water, sunlight and non-arable land to produce ethanol, which can be used as a fuel or as a feedstock, replacing natural gas in the production of plastic. The algae is grown in long plastic covered troughs, called bioreactors that are filled with salt water that has been saturated with carbon dioxide gas, which provides the carbon the algae needs for photosynthesis.