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With fuel prices rising and supplies dwindling, more and more inventors are turning their creativity towards cars that work without the need for barrels of gasoline. True, there have been a number of vehicles released that run on electricity but now designers are turning to another precious resource - air. It's not a new concept, as early as the 1920s, car designers were dabbling with the idea of cars that could run off air alone - one involved cycling air through a propeller at the front of the car - but few came to fruition. Now, designers are again looking at how air can be used to power a car.

Kramer Junction. Nevada Solar One. Andasol 1. Kimberlina. They're obscure names today. But they'll be household names tomorrow. The reason? Each is now providing 'here and now' proof concentrating solar power (CSP) works. That can't be said for cabon capture and storage. Nor can it be said for 'next generation' nuclear. Each faces years of additional research and development before some 'first mover' will be game enough to build one. That just isn't the case with concentrating solar power. It's got 20 years of proven commercial operation (Kramer Junction) behind it. It also has new innovations coming on line (Nevada Solar One), with solar thermal storage (Andasol 1), and the promise of super-low costs in coming years (Ausra's Kimberlina). What it adds up to is a price-declining research and development juggernaut in concentrating solar power. This is rapidly bringing concentrating solar power closer to competitiveness with dirty fossil fuels. The California Energy Commission estimates this price 'cross over' could happen by 2015. Bulls predict sooner. And in an industry where new plants and equipment can last 40 years, 5-7 years from now is like tomorrow. What this means is that for forward planning of new infrastructure, concentrating solar power is already nipping at the heels of coal. Toss in carbon prices and the reduced likelihood of protesters chaining themselves to bulldozers as they are likely to at any new coal plants, CSP starts looking like a VERY good deal indeed.

This book is part of a course which was offered at MIT and is part of there Open Course Work project. This is important for learning what is going on, and why, in the International community concerning Climate Change, and International cooperation.

Will Stewart has a guest post up at The Oil Drum on passive solar design techniques - Passive Solar Design Overview - Part 1. Also, at TOD, a post on the Passivhaus standard from another long-time commenter, marjorian - US Housing and the Passive Home Standard. Passive solar refers to the design and placement of a building to enable solar heating without the need for sensors, actuators, and pumps, in contrast to active solar, which utilizes pumps/blowers, sensors, and logic control units to manage collection, storage, and distribution of heat. The two techniques are not exclusive, however, and can work together effectively. As solar radiation (insolation) is a diffuse energy source, and not at the beck and call of a thermostat, passive solar design techniques are at their best when combined with other related methods, such as energy efficiency (insulation, weatherization, building envelope minimization), daylighting, passive cooling, microclimate landscaping, and a conservation lifestyle (i.e., temperature settings, raising and lowering of insulated shades, etc). Most of these topics will be covered in other articles, though passive cooling will be addressed in this series, which is intended as an overview, as a complete engineering treatment on passive solar design would require several dozens of articles.

The nature has paid the price for extraordinary expansion of human civilization; the non-renewable energy resources of the world have been nearly exhausted. Now scientists all over the world are trying to work out a solution to make up the energy shortage that the human civilization is going to face in the coming years. Among many other products under development, the scientists have invested great hopes in the potentials of wind powered electricity generators. This is a system that harnesses the power of the wind to produce usable energy.

Gore's terrific speech is here. Note: It plays for a minute and then stops. It takes 2 minutes for the video to buffer, then works fine. The last 10 minutes are here:

A sustainability consultant is a professional who is knowledgeable about the impact of business practices on the environment, and works with businesses to reduce the environmental impact of these activities.

Technology Review reports that the idea of hybrid gas-solar thermal power plants is being considered for coal fired plants now - Cutting Coal Use with Sunshine. Feeding heat from the sun into coal-fired power stations could turn out to be the cheapest way to simultaneously expand the use of solar energy and trim coal plants' oversize carbon footprints. At least that's what the Electric Power Research Institute (EPRI), a nonprofit organization backed by the electricity industry, is hoping. Last week, the institute launched a nine-month, $640,000 study to pin down the scale of the opportunity and the engineering challenges involved with making these seemingly disparate technologies work together. The study will examine the potential use of solar-thermal technology at a pair of coal-fired power stations, in New Mexico and North Carolina.

Horticulture refers to the industry and science of plant cultivation. Horticulturist work and study the disciplines of plant propagation and cultivation, crop production, plant breeding and engineering, biochemistry of plants and plant physiology.

For all of solar power's positive attributes and benefits, the most obvious drawback it suffers from is its marriage to the sun; the sun must shine for the power system to work.

Shortened workweeks, flextime, enforced time off; none of these are new concepts in today's workplace. But some U.S. state governments and organizations are turning to four-day workweeks and alternative work schedules as a way to combat the recession as well as cutting down on energy consumption. They're having varying degrees of success.

Fast Company says "Massive investments in clean energy promise to keep farmers, urban planners, and green-tech entrepreneurs in business for the next decade" and lists their pick of the new green jobs that will be created - Ten Best Green Jobs for the Next Decade. "It's time to bail out the people and the planet," says Van Jones, author of The Green Collar Economy: How One Solution Can Fix Our Two Biggest Problems. We agree, and this guide to to sustainability-focused career paths will help retrofit and solar-charge your work life. Farmer America has only two million farmers, and their average age is 55. Since sustainable agriculture requires small-scale, local, organic methods rather than petroleum-based machines and fertilizers, there is a huge need for more farmers -- up to tens of millions of them, according to food guru Michael Pollan. Modern farmers are small businesspeople who must be as skilled in heirloom genetics as marketing. ...

As part of the Senate's proposed tax stimulus plan, tax credits of up to $7500 have been included for plug-in electric vehicles! This is huge proposal and signifies the Senate is willing to work with President Obama to wean the United States off its dependency on foreign oil.

WASHINGTON (April 23, 2008) - An investigation of the Environmental Protection Agency released today found that 889 of nearly 1,600 staff scientists reported that they experienced political interference in their work over the last five years. The study, by the Union of Concerned Scientists (UCS), follows previous UCS investigations of the Food and Drug Administration, Fish and Wildlife Service, National Oceanic and Atmospheric Administration, and climate scientists at seven federal agencies, which also found significant administration manipulation of federal science.

OAK RIDGE, Tenn. - U.S. Sen. Lamar Alexander came to Oak Ridge on Friday to promote a five-year project aimed at making America energy independent and more environmentally friendly within a generation. Alexander, a Tennessee Republican, is comparing his proposal to the World War II-era Manhattan Project, when the nation worked feverishly and secretly to develop atomic weapons. Oak Ridge's people and facilities played a key role in that project.

Working in Haiti, Shawn Frayne, a 28-year-old inventor based in Mountain View, Calif., saw the need for small-scale wind power to juice LED lamps and radios in the homes of the poor. Conventional wind turbines don't scale down well-there's too much friction in the gearbox and other components. "With rotary power, there's nothing out there that generates under 50 watts," Frayne says. So he took a new tack, studying the way vibrations caused by the wind led to the collapse in 1940 of Washington's Tacoma Narrows Bridge (aka Galloping Gertie).

PERC--the Property and Environment Research Center-is the nation's oldest and largest institute dedicated to improving environmental quality through markets and property rights. Research is at the heart of PERC's work followed by outreach and education. Formed more than 25 years ago, PERC applies economic thinking to environmental problems. Located in Bozeman Montana, PERC pioneered the approach known as free market environmentalism (FME).

PERC--the Property and Environment Research Center-is the nation's oldest and largest institute dedicated to improving environmental quality through markets and property rights.

"Wind energy could generate 20 percent of the electricity needed by households and businesses in the eastern half of the United States by 2024, but it would require up to $90 billion in investment, according to a government report released on Wednesday. For the 20 percent wind scenario to work, billions must be spent on installing wind towers on land and sea and about 22,000 miles of new high-tech power lines to carry the electricity to cities, according to the study from the Energy Department's National Renewable Energy Laboratory."