Among the many measures the world can take to wean itself off fossil fuels, few match the benefits of making homes, business, and cars more energy-efficient. But financial and psychological barriers have kept individuals, businesses, and governments from realizing efficiency’s great potential.
Are most homebuyers interested in purchasing a home that saves 90% over a traditional home on heating and cooling costs and requires only a small active heating system the size of a hairdryer? The Passivhaus movement is an exciting building design concept that offers tremendous energy savings due to reliance on passive heating systems. Europe is embracing the concept with between ten and fifteen thousand houses already built and governmental support of mandating the standard. The Passivhaus Institut in Darmstadt was formed in 1996 to promote and control passive house design and the group only recently formed the Passive House Institute US (PHIUS) to reach out directly to the US building market. It is slow to gain momentum, but holds promise for the US market in the future.
Green roofs, green walls, green parking lots, shade trees, the greening of urban spaces in general, the restoration of urban waterways, wetlands and the re-greening of brownfield areas; can all be thought of as different techniques to nurture a green living skin over regions of urban development. While there are many important differences between each of these separate techniques as well as their underlying technologies they all share a common overarching goal of bringing an analog of the natural living green skin that characterizes the natural landscape back into our urban areas. They all promote the restoration and re-integration of these heavily populated areas back into the surrounding natural environment.
A new report released recently assessed exactly how 40 of the country’s largest cities are trying to limit their carbon footprints and take the steps needed to raise these efforts to the next level. The report, initiated and conducted by Living Cities, a collaboration of 21 of the world’s largest foundations and financial institutions is […]
The keystone of the green economy is a drastic increase in energy efficiency. Increasing our societies energy efficiency is the single most vital and important thing we need to do in order to have a green economy or in fact any kind of economy at all. It is also vitally important to throttle back the amounts of fossil fuel we burn in order to mitigate and diminish the rapid and potentially catastrophic climate change that is being driven by our fossil fuel habit.
Without much more energy efficient buildings and transportation systems nothing we do will be able to prevent an economic collapse brought about by the inevitable and rapidly approaching decline in the recoverable supplies of all forms of fossil energy. We cannot build out wind, geothermal, biofuel, or solar energy fast enough to sustain our civilization in the face of rapidly shrinking recoverable fossil energy reserves; unless we embark on an urgent and sustained drive to use energy (and other resources) with much higher efficiency.
