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Concurrent with the release of its annual financial report, Toyota has published Sustainability Report 2008: Towards a New Future for People, Society, and the Planet. The report, which is the third since Toyota switched from environmental to sustainability reports in 2006, is structured around three themes: sustainable mobility (products), sustainable plant initiatives (manufacturing), and contributing to the development of a sustainable society-also referred to as "nurturing society."

Olive stones can be turned into bioethanol, a renewable fuel that can be produced from plant matter and used as an alternative to petrol or diesel. This gives the olive processing industry an opportunity to make valuable use of 4 million tonnes of waste in olive stones it generates every year and sets a precedent for the recycling of waste products as fuels. Researchers from the Universities of Jaén and Granada in Spain show how this can be achieved in a study published in the latest edition of the Society of Chemical Industry's (SCI) Journal of Chemical Technology & Biotechnology.

The U.S. Department of Energy and the National Renewable Energy Laboratory have released the first technical support documents to show 50 percent energy savings in commercial retail buildings. The two reports provide recommendations on how to achieve 50 percent energy savings over the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) Standard 90.1-2004 in grocery stores and medium-sized retail buildings. Conducted by NREL's Commercial Buildings team, under the direction of DOE's Building Technologies Program, the studies support DOE's goal of producing market-ready, net-zero energy commercial buildings by 2025.

Our American way of life is unsustainable; rather than attempting to perpetuate it, we must transition beyond it-quickly. Should we fail to do so, our society will collapse-in the not-too-distant future… Message to mainstream America: our American way of life-300+ million people enjoying historically unprecedented living standards-has been enabled by our increasingly dysfunctional ecological and economic behavior over the past 200 years. Our existing way of life is therefore unsustainable; in fact, America is facing imminent societal collapse.

Builder and author Shay Salomon finds that the happiest home builders are often the ones with the smallest houses. They're less costly to build and maintain, more likely to be finished, use fewer resources and help people simplify their lives. One version of "smaller" is to share a house, which can ease our loneliness while building our social network. Co-founder of the Small House Society, Shay notes that scaling down can enable a ratcheting up of our whole lifestyle, as we revalue quality over quantity. Declaring "Enough", she says, is the most ecological thing one can do.

The government plans to announce policy measures aimed at halving the price of solar power generation in the next three to five years as part of its action plan on greenhouse gas emissions, government sources say. According to the sources, the measures will form part of an action plan designed to bring about a 60 percent to 80 percent cut in carbon dioxide emissions by 2050 and thereby create a low carbon-emission society.

The thin film solar field is still a hot bed of activity - Technology Review has a post on a prototype cell that uses photonic crystals - Efficient Thin-Film Solar Cells. Researchers at MIT have unveiled a new type of silicon solar cell that could be much more efficient and cost less than currently used solar cells. Materials science and engineering professor Lionel Kimerling and his colleagues presented results of the first device prototype at a recent meeting of the Materials Research Society in Boston. The design combines a highly effective reflector on the back of a solar cell with an antireflective coating on the front. This helps trap red and near-infrared light, which can be used to make electricity, in the silicon. The research team is licensing similar technology to StarSolar, a startup in Cambridge, MA.

The National Clean Energy Project was formed to promote a dialogue on how to deal with the energy crisis and hopefully get to a clean energy based society.

The challenges our society faces with depleted energy resources, water shortages, soaring food costs all point to environmental solutions.

Jerome a Paris has an excellent (and long) article at TOD about the economics of wind power - The cost of wind, the price of wind, the value of wind. I'd like to try to clear some of the confusion that surrounds the economics of wind power, as it is often fed and used by the opponents of wind to dismiss it. As I noted recently, even the basic economics of energy markets are often wilfully misunderstood by commentators, so it's worth going in more detail through concepts like levelised cost and marginal cost, and identify how different electricity producers have different impacts on electricity (market) prices (which may or may not be reflected in retail prices) and have different externalities. Value for society of a generation source may also include other items that are harder to acount in purely monetary terms (and/or whose very value may be disputed), such as the long term risk of depletion of the fuel, or energy security issues, such as dependency on unstable and/or unfriendly foreign countries or vulnerable infrastructure.

Largest Grassroots Solar Event in America: Register Now! Imagine 140,000 people participating in a national tour of solar-powered homes and institutions - all in one day. That's what happened last year at the American Solar Energy Society (ASES) National Solar Tour - and this year looks set to be even bigger. Whether it's DIY solar homes and solar cars, new homes with solar as standard, or utility-scale multi-megawatt solar installations, TreeHugger is not short of stories about how solar power is leading us away from fossil fuel dependence and helping to stem climate change. But while change is beginning to happen, it's not happening anywhere near fast enough. That's why the ASES tour is so important - getting people in front of real, live solar installations, showing them how they work, and encouraging folks to go solar themselves. Read on to find out how you can participate.