A Car That Runs on Air

When I first ran across this story, about a new vehicle design that uses compressed air to drive the cylinders, I was convinced it was a scam. But, it's been written up in Popular Mechanics, appeared in a Discovery Channel segment (shown above), and a currrent model made a personal appearance at the New York International Auto Show this year.

The potential here seem enormous and I plan to investigate and report more on this in future posts.

Here is a prototype illustration of the six-seater version being designed for the U.S. market.

Uranium Frenzy

No More Uranium Here
Originally uploaded by cogdogblog

The abandoned uranium mine situated on the edge of the Grand Canyon (dubbed Orphan Mine) signals the end of one era and the possible beginning of another. The uranium mining frenzy and speculation that spread radioactive tailings, planted the seeds of cancer, and despoiled rivers and reserverations throughout the West seem likely to begin again, as discussed in Big Bad Boom by Chip Ward.

Ward paints a grim picture of the process:

So we in states like Utah, Nevada, Arizona, New Mexico, and Montana are poised for a mining boom reminiscent of the one in the 1950s when the nuclear age began. Then, the West’s uranium mines provided the raw material for our metastasizing Cold War nuclear arsenal and the nation’s first generation of nuclear reactors. (You remember Three Mile Island, don’t you?) Back then, radioactive ore was often dug out by impoverished Navajo miners desperate for jobs. Many of them later sickened and died from exposure to radioactivity.

After uranium has been turned into “yellowcake,” fit for further processing into reactor fuel, and then used to power a nuclear reactor, it is supposed to return to our Western landscapes in the form of “spent” nuclear fuel — something that is lethally dangerous for tens of thousands of years. Our arid landscapes, we are told, are ideal for waste that must be kept isolated and dry for at least a thousand years.

In other words, we get it at both ends of the nuclear energy cycle — and the drier we get, the more appealing we look. First, they dig a hole and take it out; then, they dig another and return it to the ground in far more dangerous shape. Lurking between the mines and the waste dumps are processing mills — and, of course, we have them, too. Even as debris from toxic slag piles in the old mines and mills of the West is still blowing in the wind or leaching into our watersheds, new slag heaps are taking shape in the fevered dreams of the next generation of speculators.

With abundant renewable energy sources ready to meet our national requirements, there is no good reason to resurrect radioactive ghosts from the failures of the past.

The Greening of the Hawks

With the urgency of climate destabilization growing daily, the purity of one's ideological calling card becomes less important than the need to phase out fossil fuels and phase in renewable energy as quickly as possible. As Laura Rozen reports in a Mother Jones article, James Woolsey, Hybrid Hawk, neoconservatives and Iraq war boosters are increasingly seeing the wisdom of clean energy. Though they may cloak the shift as a matter of national security, rather than a means of combatting global warming, many of them are becoming unlikely allies in the quest to beat oil addiction.

Rozen's dialogue with James Woolsey unearthed some interesting revelations:

Woolsey recalls the moment he started thinking seriously about energy as both an environmental and strategic issue. "I was sitting in my car in a gas line in Washington in '73, after the Saudis had declared an oil embargo on us and Israel was attacked," he says. "And I got mad." Energy issues have captivated him ever since. In the early '80s, he joined the Jefferson Group, an alternative-fuel salon founded on the Jeffersonian ideal "that the future of America is determined by the independent yeoman farmer."

An independent streak has run throughout Woolsey's 40-plus years in Washington. He has served in four administrations, both Republican and Democratic. In the twilight of the Cold War, he found himself increasingly identifying with Republicans on national security. He spent three years as a member of then-defense secretary Donald Rumsfeld's Defense Policy Board. When I met with him, he was expecting another career change, leaving the federal contractor Booz Allen Hamilton to join a California firm that invests in alternative-energy technology. He'd also just appeared in an anti-oil print ad for the American Clean Skies Foundation, a PR group started by a natural gas company.

With earth's future in the balance, we need all the clean energy promoters we can get.

Finding the Ultimate Battery

Storing energy effectively lies at the heart of our contemporary quest for escaping fossil fuel addiction. Two of the most promising alternative energy sources, wind and solar, are inconsistent throughout the day or week or month. Without a means of capturing the energy so generated for those times when the sun doesn't shine or the wind doesn't blow, the potential is diminished. And the vast promise of electric cars hinges on the ability to extend their range sufficiently so you don't run out of power on the way home from work.

Lee Hart, a self-employed electrical engineer profiled in a recent Mother Jones article, A Charge to Keep, tracks the progress of battery technology from his basement lab. What he has learned in the course of rigorous testing is enlightening.

Britt Robson, the writer of this piece, nurses out the crux of the problem:

Hart has heard the dreamers wax on about a time when batteries will run for days on end, revolutionizing plug-in cars, windmills, and solar panels—just about any source of alternative energy would benefit from good batteries, which allow electricity to be stored and transported. He has sympathy for those visions. A motto of his hero, Thomas Edison, is inscribed on a favorite sweatshirt: "To invent you need a good imagination and a pile of junk." Like most electro-geeks who'd rather tinker than strut, he also adheres to Edison's practical DIY ethos, which explains the battery room and the small fleet of electric cars he has either retrofitted or built from scratch. His tests invariably reinforce what he and most everyone else familiar with the battery market have long known. When it comes to practical applications for sustainable energy, batteries are more of an Achilles' heel than a panacea, because we are running 21st-century technology with what is essentially 18th- or 19th-century chemistry.

Hart's work is leaning toward extending available battery power by creating light, structurally solid automobile frames, favoring efficiency over raw power.

But the main innovation in Hart's car has nothing to do with how it's powered—it'll be compatible with any kind of battery—but rather with its strong and lightweight frame, influenced by the ultraefficient "hypercar" philosophy of environmentalist Amory Lovins. "If I make the car lighter, I still get the fuel economy I'm looking for," notes Hart. In other words, for now, the best way to get more out of batteries is to simply demand less of them.

Improved efficiency could make a tremendous contribution to reducing our energy-consumptive habits, as has been thoroughly documented by the Rocky Mountain Institute, providing savings in home and business heating and cooling, industrial operations, and transportation. And even the variability of solar and wind power is not as straightforward as you might think, as this RMI article, Rethinking the Reliability of Solar and Wind Power, points out.

The solutions are out there, if only we'd take advantage of them.

Generating Jobs, Producing Energy

The tired, old energy paradigms of the last hunded years and the fixation on fossil fuels do nothing for solving climate destabilization problems. In this interview produced by The Real News Network, José Etcheverry, an energy policy analyst for the David Suzuki Foundation, explains how renewable resources, including solar and wind power, encourage a decentralized energy model where individual communities benefit not only from cost-effective power, but jobs and a steady flow of revenues as well.

Rolling Back Carbon Dioxide

The latest message from Bill McKibben is clear: when it comes to climate destabilization, there are no do-overs. McKibben, a latter-day Paul Revere who has been writing about the growing risks of climate change for almost 20 years, is direct and to the point in his latest article, Earth at 350. The number 350 represents the number of parts per million of carbon dioxide in the atmosphere that may help us avoid the tipping points, predicted by NASA climatologist Jim Hansen, that could accumulatively plunge the planet into a death spiral of climatic change. Right now, we're at 385 ppm. Are we smart enough and dedicated enough as a species to reverse current trends and bring CO2 levels down? McKibben thinks so, but it's going to take massive reorganization of our cultural habits and national proclivities to cap the still rising carbon levels.

We're the ones who kicked off the warming; now, the planet is starting to take over the job. Melt all that Arctic ice, for instance, and suddenly the nice white shield that reflected 80 percent of incoming solar radiation back into space has turned to blue water that absorbs 80 percent of the sun's heat. Such feedbacks are beyond history, though not in the sense that Francis Fukuyama had in mind.

And we have, at best, a few years to short-circuit them--to reverse course. Here's the Indian scientist and economist Rajendra Pachauri, who accepted the Nobel Prize on behalf of the Intergovernmental Panel on Climate Change last year (and, by the way, got his job when the Bush Administration, at the behest of Exxon Mobil, forced out his predecessor): "If there's no action before 2012, that's too late. What we do in the next two to three years will determine our future. This is the defining moment."

In the next two or three years, the nations of the world are supposed to be negotiating a successor treaty to the Kyoto Accord. When December 2009 rolls around, heads of state are supposed to converge on Copenhagen to sign a treaty--a treaty that would go into effect at the last plausible moment to heed the most basic and crucial of limits on atmospheric CO2.

If we did everything right, says Hansen, we could see carbon emissions start to fall fairly rapidly and the oceans begin to pull some of that CO2 out of the atmosphere. Before the century was out we might even be on track back to 350. We might stop just short of some of those tipping points, like the Road Runner screeching to a halt at the very edge of the cliff.

McKibben hopes the last-minute Hail Mary pass will be caught.

A few of us have just launched a new campaign, 350.org. Its only goal is to spread this number around the world in the next eighteen months, via art and music and ruckuses of all kinds, in the hope that it will push those post-Kyoto negotiations in the direction of reality.

Depending on who you talk to, optimist or pessimist, we either face salvation or extinction. We can marshall our resources and ingenuity and turn things around, or, alternatively, we can continue whining that humans are too stupid to change and the planet is doomed, and do nothing as temperatures continue to rise. If we're doomed (certainly a distinct possibility), wouldn't you prefer to be on the side of those actively fighting to make the necessary changes to stabilize the climate and just maybe cast the die in favor of survival? Something to consider...

A Practical Electric Car

As gasoline prices have soared and global warming concerns have reached a crescendo, many automobile buyers have cast at least a passing eye at electric cars. Prototypes keep turning up a car shows, some rudimentary models are available through sources such as ZAP!, but most choices have looked like impractical compromises (too expensive, not enough range, not enough speed, not enough room).

A Norwegian firm, Th!nk, is trying to change the equation and plans to introduce their battery-powered Think City in the United States by the end of 2009. With a projected price of $17,000, a range of 110 miles, and a top speed of 65 mph, this may be the vehicle that breaks down the barriers that have kept electric cars from gaining a foothold (or is that a tirehold) in the market.

Writing for WIRED, Marty Jerome commented on the plans and the history of the company:

Spokespeople for Think plan to produce 30,000 to 50,000 within two years. Currently the company produces 10,000 vehicles per year in Europe.

Think North America, as its U.S. arm is called, will build cars in Southern California. The vehicle was originally developed by Ford, though it sold it to Norwegian investors in 2003. And while there are a half-dozen U.S. startups working on electric cars, Think has received backing most recently from General Electric. It also has backing from venture capital firms that include RockPort Capital Partners and Silicon Valley heavyweight, Kleiner, Perkins, Caufield & Byers.

Of course, money rarely tells you whether an electric car company can actually deliver on its promises. Failures and fraud have been rife in the industry.

Having watched many promising prospects rise and fall in the electric car sector, Th!nk may be on to something real with this latest offering.

Solar City in the Desert

Call it a proof of concept for solar energy or an example for the rest of the world. The self-sufficient Abu Dhabi solar city provides an intriguing model for other communities and a hint at the possibilities of solar energy in future applications.

Worse than the IPCC Projected

Collapsing ice shelves in Antarctica, including the recent split of a slab seven times the size of Manhattan, are part of a pattern, which appears to indicate climate destabilization is progressing faster than IPCC predictions. As reported by the REAL news network:

Wind Turbine Leader

When the OPEC crisis struck in the 70's, Denmark didn't waste any time seeking out new sources of energy. They immediately embarked on a nationwide initiative to develop wind power and they now own 40 percent of the global market. The country is also a mecca for bicyclists and during a typical commute in busy Copenhagen you will encounter more bicycles than cars.

The Toronto Star reports on the Danish proclivity toward efficiency, compact living arrangements, and smart engineering. When the national leadership falters, the municipal leaders step in.

But even as climate campaigners chide their national government's recalcitrance, most offer high praise for Copenhagen's municipal leadership, which has set itself an ambitious goal for 2015 to become what it calls the world's "Eco-Metropole" – the cleanest, greenest, lowest-emitting city on the planet.

"The things we've already achieved show us that Copenhagen doesn't need national legislation to go even further. We can do most of this on our own," said Klaus Bondam, the city's mayor of technology and the environment. "Cleaning up our harbour so that you can swim and catch cod fish, enhancing our cycling network to where it is today, becoming one of the first in the world to convert the wasted heat of electrical generation into heat for our homes – Copenhagen has done all this. And now we lead Europe. By 2015, we'll lead the world."

Among the city's goals is a plan to raise to 50 per cent the number of downtown commuters arriving by bicycle. The number seems otherworldly, until you consider that bikes comprise 36 per cent of downtown traffic, compared to only 27 per cent private automobiles.

To fully comprehend how such numbers are possible, the Toronto Star sought a history lesson from Dansk Cyklist Forbund – the Federation of Danish Cyclists – an organization launched in 1905 when the pressing issue of the day was punctures resulting from horseshoe nails littered along Copenhagen's network of horse paths.

"Here in Copenhagen, riding a bike is like wearing shoes," said DCF's Allan Carstensen. "It's normal. It's easy. It's convenient. People ride in their work clothes. And even the people in cars, the chances are they have a bike at home that they use regularly to run errands in the neighbourhood."

As the article points out, the dependence on coal is a sore spot in this picture, but positive steps are underway to lessen coal usage.

Uranium Mining: The Dirty Side of "Clean" Nuclear Power

Those who tout the benefits of "clean" nuclear energy don't usually talk much at all about the dirty sides to this industry: uranium mining. As many of the most abundant sources of ore are on Native American lands, the pressure is on once again to open these lands to mining.

As reported by the Washington Post, Navajos in particular have borne the consequences of mining operations.

Like many Navajos who worked in the mines, Larry J. King didn't know then that there was anything dangerous about it. "We had no respirators; you'd have sweat running down your face with the uranium dust getting in your ears, nose and mouth," said King, who surveyed mine tunnels from 1975 to 1982. "You couldn't help but swallow it."

During mining's peak, from the early 1950s to the early 1980s, about 400 million pounds of uranium were extracted from the region. At the end of the boom, around 1984, the price of uranium languished below $10 a pound. Mines shut down, and the United States began importing nearly all of its uranium, with the bulk coming now from Canada, Russia and Australia. But by last summer, the price had rebounded to a record high of $136 a pound.

Though the mines created numerous jobs and substantial royalties for the Navajo and Laguna tribes, the decades of extraction took a heavy toll: lung cancer, kidney disease, birth defects and other ailments at notably high levels among miners and families who lived among piles of uranium tailings -- the ground-up waste from milling -- and even used the material to build their homes.

All but one of the major companies now seeking to mine in New Mexico are newcomers to the state and have promised to do a better job than their predecessors. In addition, pending state legislation would require them to deposit a small percentage of their profits in a "legacy fund" to clean up existing uranium contamination.

But King said, "I don't believe them one bit."

He blames his recent health problems on uranium. He remembers July 16, 1979, when more than 90 million gallons of uranium-contaminated water burst through the dam of a tailings holding pond and into the Puerco River running by his land. And he remembers seeing his cattle drop dead from, he thinks, drinking polluted mine runoff.

There is other dirt deeply embedded under this industry's fingernails as well, of course. Periodic tritium discharges from the stacks. Fish kills from overheated cooling water effluent. The carbon costs of the coal-fired plants that power the uranium processing facilities.

But, that's another story for another day.

Nuclear Power, By the Numbers

Nuclear power, the most expensive technique for boiling water ever invented, is perhaps best described by the numbers.

Amount that a dollar spent on energy efficiency and renewable energy goes toward reducing CO2 emissions compared to a dollar spent on nuclear power: 7 to 10 times

Number of dirty, coal-fired plants required in Kentucky to operate two uranium enrichment plants: 4

Percentage increase in ovarian and testicular cancer among children in Navajo lands adjacent to uranium mining operations performed in the 1950's: 1,500

Year that India's first commercial nuclear power reactor went on line: 1969

Year that India performed its first test of a nuclear bomb: 1974

Number of days the $10-billion French faster breeder reactor, Superphenix, operated during an 11-year span before being permanently shut down following a massive leak of sodium coolant: 287

Number of French reactors that shut down during the heat wave of 2003 because of a rise in the temperature of cooling water from rivers: 17

Number of tons of plutonium oxide powder transported annually to French MOX fuel reprocessing facilities in Belgium and southern France: 10

Number of metric tons of plutonium stored worldwide as of 2003: 240

Number of pounds of plutonium required to make a nuclear weapon: <20

Percentage of CFC-114 gas released into the air as a result of uranium enrichment in the U.S.: 90

Number of times that CFC is more potent as a heat trapper and global warmer than CO2: 10,000 - 20,000

Percentage of citizens in France polled in 2006 who favor a phase-out of nuclear energy: 61

Number of peak early fatalities predicted by the Nuclear Regulatory Commission in their Calculation of Reactor Accident Consequences study if the Salem 2 nuclear plant in New Jersey suffered a meltdown: 100,000

Property damage estimated in the CRAC 2 study from a Salem 2 meltdown (in 1980 dollars): $155,000,000,000

Number of energy companies that Don Hintz, President of Entergy, says can afford the $1.5 - 2 billion cost of building a nuclear reactor right now: 0

Draw your own conclusions...

Food and Climate Change

In discussions about what to do to reverse climate change, most people--whether environmentalists, politicians, or plain ordinary folks--overlook an obvious, yet largely ignored, source of greenhouse gas emissions: the global industrial food system. This elephant in the room seems to escape attention in the media, in legislative chambers, and in coffeeshop discussions, despite the fact that our crop- and livestock-raising practices represent about 33 percent of the greenhouse gas totals generated by human activities.

Anna Lappé, writing for Seattlepi.com, cites data analysis by the Pew Center on Global Climate that blames the livestock sector by itself for one-fifth of the total world emissions. This represents more emissions than is produced by all the planes, trains, and automobiles on the planet.

We are deeply wedded to a system that is inexorably leading to climate changes that could eventually make the planet uninhabitable.

Industrial farming is particularly problematic because it is a key emitter of methane and nitrous oxide, which have, respectively, 23 and 296 times the global warming effect of carbon dioxide. In the United States, widespread use of nitrogen fertilizer, roughly half of which is wasted in leaching and runoff, contributes to approximately three-quarters of the country's nitrous oxide emissions. Globally, agriculture is responsible for nearly two-thirds of methane emissions.

With climate scientists warning we need an 80 percent reduction in greenhouse gas emissions by 2050 to avert planetary catastrophe, it's clear we need bold action -- and that bold action must include re-thinking food.

The article, despite the grim scenario depicted, has a hopeful tone, highlighting a rapidly emerging counterweight to the excesses of industrial farming: climate-friendly farming practiced on family-scale farms. Miniscule in scope at the moment compared to the overall agricultural behemoths that dominate the landscape, organic gardening as practiced by small farms such as Seattle Tilth, may be our best bet for the future.

As Anna concludes:

An organization such as Seattle Tilth may seem like a tiny drop in the climate-change bucket, but its impact should not be measured in isolation. Dozens of sister efforts are flourishing -- from Austin, Texas, to Ypsilanti, Mich. -- encouraging people to reconnect with their food and giving people the opportunity to get their hands in the dirt.

Yes, the specter of climate chaos is daunting, but day-by-day and garden-by-garden organizations such as Seattle Tilth are showing a homegrown way to address the crisis.

Well said...

Stackable Cars

From Julia Whitty and The BlueMarble Blog comes a story of a prototype vehicle: an electric car that is designed for shared use. Drive it, return it, and stack it for the next commuter. General Motors is behind the concept for the CityCar, which includes a robotic drive mechanism and omnidirectional wheel configuration.

Whitty says:

Imagine if parking, drive time, congestion, navigation, and your fellow driver was no longer an issue. Imagine what that might do to emotional health, personal time & energy budgets, neighborly love, and the big CO2 footprint in the sky. Imagine if we didn't need to compete for space but could happily piggyback on each other. Okay, call me an idealist but there are days when the future looks good enough for hope... You'll have to navigate on your own through the Smart Cities pages to find the City Car. But it's a really fun ride.

Can Americans escape the notion of a car (or two) in every garage and embrace shared vehicles, like the community bicycle programs that are popular in Amstersdam and have been tried in other cities, as well? Maybe when the price of gasoline reaches $7 per gallon.

Zero-Emission Sports Car

I'm a sucker for a sleek sports car. The rational part of my brain tells me that if we, as a society, don't overcome our obsession with automobiles, our rapid slide toward an unbearable tropical greenhouse climate will accelerate. But, from the time I was thirteen years old and discovered a stash of Car and Driver and Road and Track magazines in the garage of the home my family was renting, I was hooked. The photos of Sunbeam Alpines, Austin Healy 3000's, Morgan roadsters, Triumph TR-3's, and other four-wheeled exotica created a deep-seated love of sports cars that has yet to ebb.

So, although I will probably never own a Tesla or Morgan Lifecar (shown in the photo and styled after the Morgan-8 roadster), I think that the technologies that these automotive marvels are introducing are our best bet for preserving some measure of high-speed, independent mobility in the future. I also think that we should shift our transportation more toward mass transit, bicycling, and walking, with maybe a hybrid electric motorcycle thrown in for good measure, but we have the roads, we have the parking lots. Let's use them wisely as we transition to a people-oriented society rather than one where carbon-emitting motor vehicles dominate.

The Morgan Motor Company has been around since 1906, but their new fuel-cell powered sports car is an undeniable show stopper. It travels 250 miles per tank of hydrogen, accelerates from 0-60 in roughly 7 seconds, tops 90 miles per hour, and is being unveiled at the upcoming Geneva Motor Show on the 6th of March. Morgan will gauge production plans based on the response. As discussed in a BBC News article, Green sports car set for launch, the car was designed to minimize weight, which precludes including some features that typical car owners are accustomed to:

It also doesn't have any of the "luxuries" such as a stereo, central locking or even airbags, found on many modern cars.

"The objective is to get the weight down to 700kg."

There are also other notable omissions such as a gearbox and - as the fuels cells produce little noise - the roar of an engine.

"We may have to supply headphones with the sounds of a five litre V8 linked to the throttle pedal," said Mr Parkin.

Critics will point out that hydrogen fuel cells are a storage system, not a form of energy, but this critique ignores much work that is being done to provide a decentralized means of accumulating energy through wind turbines, solar panels, and other energy sources. What's wrong with driving a car that runs from hydrogen produced from a wind turbine on your garage roof, as described in More Wind Power!. A hybrid approach may be our best means of coping with diminishing fossil fuel reserves.

Using more advanced technologies, electricity from wind turbines can be stored by compressing or heating substances in tanks. One of the most promising ways to store surplus wind power is by producing hydrogen. Hydrogen can be stored under pressure in tanks, to provide fuel for industrial or domestic use or in cars, all without creating pollution. As discussed in more detail in an earlier article, electric vehicles can also run on Lithium-ion batteries that can be recharged from the solar panels on top of the roofs under which they are parked.

Anyway, more electric cars means that we need to generate more electricity, and wind power is one of the easiest and cleanest ways to do so. We can choose the times when best to recharge the batteries or produce the necessary hydrogen, so we can do so when it's windy and when there's little further demand, so it will take little or no electricity away from other usage. Look at it this way and claims that wind power was unreliable and that hydrogen was inefficient do not hold.

Critics will always be found for any proposed transportation solution that doesn't fit their personal intellectual blinders. I personally think that smart technology applied in ways that minimize environmental impact and lower carbon emissions can set us on the road to reversing global warming while still enjoying the occasional top-down drive through the countryside.

Getting Energized for Change

From a rural outpost in Ripton, Vermont, Bill McKibben has been waging a tireless campaign against global warming. He started back when only a handful of people were even discussing the issue; the publication of his book, The End of Nature, in 1989 clarified many of the concepts that only today have become almost universally embraced.

McKibben is now working to energize people around the globe to make the necessary changes to avert what he sees as an accelerating disaster, the magnitude of which dwarfs all our other social problems. His Step It Up activities in 2007 rallied a large part of the nation to the cause. But, McKibben's message in 2008, articulated in a recent Yes! magazine article, First, Step Up, is that global warming is happening faster than expected and an enormous social movement will be needed to stop it.

McKibben gave some examples to suggest the scale of the problem:

What exactly do I mean by large? Last fall the scientists who study sea ice in the Arctic reported that it was melting even faster than they’d predicted. We blew by the old record for ice loss in mid-August, and by the time the long polar night finally descended, the fabled Northwest Passage was open for navigation for the first time in recorded history. That is to say, from outer space the Earth already looks very different: less white, more blue.

What do I mean by large? On the glaciers of Greenland, 10 percent more ice melted last summer than any year for which we have records. This is bad news because, unlike sea ice, Greenland’s vast frozen mass sits above rock, and when it melts, the oceans rise—potentially a lot. James Hansen, America’s foremost climatologist, testified in court last year that we might see sea level increase as much as six meters—nearly 20 feet—in the course of this century. With that, the view from space looks very different indeed (not to mention the view from the office buildings of any coastal city on earth).

What do I mean by large? Already higher heat is causing drought in arid areas the world over. In Australia things have gotten so bad that agricultural output is falling fast in the continent’s biggest river basin, and the nation’s prime minister is urging his people to pray for rain. Aussie native Rupert Murdoch is so rattled he’s announced plans to make his NewsCorp empire (think Fox News) carbon neutral. Australian voters ousted their old government last fall, largely because of concerns over climate.

The answer, McKibben thinks, is in building the largest social movement ever known.

Most of all, we need a movement. We need a political swell larger than the civil rights movement—as passionate and as willing to sacrifice. Without it, we’re not going to best the fossil fuel companies and the auto-makers and the rest of the vested interests that are keeping us from change.

Some of us have spent the last couple of years trying to build that movement, and we’ve had some success. With no money and no organization, seven of us launched StepItUp in January 2007. Before the year was out, we’d helped organize 2,000 demonstrations in all 50 states—and helped take our once-radical demand for an 80 percent reduction in U.S. carbon emissions by mid-century into the halls of power.

The conclusion of the article manages to be optimistic. Despite the scope of the challenge, there are many actions we can take collectively and individually to spur the necessary change. But, it's clear we need to start now and the changes need to be deep. Fasten your seat belts; it's going to be a bumpy night.

Harvesting Energy from Compost

The proliferation of small-scale power plants is skyrocketing across New England as many communities are tapping into abundant, natural sources of energy--from Cow Power in Vermont to a plan in Boston to use Fall foliage for something other than to attract tourists.

A staff writer for Boston.com, Andrew Ryan, revealed the innovative scheme for tapping yard clippings, leaves, and food scraps to produce heat and electrical power. "Urban decay, redefined" describes a plan to generate electricity for up to 1,500 homes and heat for a rooftop greenhouse from the power of compost.

The project, which is still in the early conceptual stage, would take the city's 6,000-ton composting program indoors. For more than a decade, leaves and yard clippings have been collected each spring and fall and trucked to a muddy clearing off American Legion Highway in Roslindale. The undulating mound is almost two stories tall, loaded with tan, brown, and black leaves in various states of decay. On a recent afternoon, white steam gushed from the pile, evidence that microorganisms were hard at work, generating heat that pushes the internal temperature near 130 degrees, said Nora Goldstein, executive editor of BioCycle magazine.

In an enclosed facility, officials would recycle heat and biogas released when leaves, grass clippings, and other organic material decay. Biogas includes methane, which would fuel a turbine, generating up to 1.5 megawatts of power, and carbon dioxide, which would nurture plants in the greenhouse.

"There have been pieces of this that have been done other places, so there isn't as much of a worry that it would fail," said Tom L. Richard, director of the Institutes of Energy and the Environment at Penn State University. "But it is new enough and innovative enough that it would hopefully be an example that other places in the country could follow."

The move toward collecting energy from materials we normally consider "waste"--whether cow pies or maple leaves--is an indicator that we can solve many of our energy needs simply through resourcefulness and ingenuity. Why build more coal and nuclear power plants when abundant renewable energy sources surround us?

Profitability in Clean Energy Technology

Fighting climate change can be profitable. An article in the Christian Science Monitor, Business begins to see profit in going green, refutes the argument that combatting climate change will cripple the economy. Instead, clean energy technologies and the carbon-trading market appear likely to drive profitability and re-invigorate the economy.

Some of the indicators from the article:

A new study by international consulting firm McKinsey finds that half the necessary cuts in greenhouse-gas emissions can be achieved at a net profit. The study shows that investment in energy efficiency of about $170 billion annually worldwide would yield a profit of about 17 percent, or $29 billion. The Financial Times reports:

"Diana Farrell, director of the McKinsey Global Institute, said: 'It shows just how much deadweight loss there is in the economy in energy use.' She said the most inefficient sector was heavy industry in China, with the second residential housing in the US, where homes are large, poorly insulated ..."

At the United Nations Investor Summit on Climate Risk in New York last week, nearly 50 major US and international investors pledged to invest $10 billion in clean technology over the next two years. That's considerably more than two years ago when 26 funds made a $1 billion pledge.

Given the slow response by governments worldwide to taking any kind of action on climate change, it's a promising sign that businesses seem to be taking a leadership role in driving clean energy initiatives.

Take a Ride in the Tesla

There have been some management upheavals at Tesla Motors since this video first aired in November of 2007, but you can still get a sense of what a revolutionary car looks like and how it drives by watching the video. The company plan is to progressively drive the price down from the current $92,000 tag to where subsequent models will penetrate that conventional strata where Accord, Camry, and Taurus drivers now reside. Interesting plan... Will it succeed? Look at the vehicle and you tell me.

Geothermal, the Unsung Power Source

Electricity from geothermal power rarely gets ink in the press the way more glamorous renewables do—including solar, wind, and biomass—but in some places, such as California, it already is making a substantial contribution to power requirements. A recent article in MercuryNews.com talked about the efforts in The Geysers to harvest energy from underground steam.

The potential for this energy source is signficant:

In all, The Geysers generates 4.7 percent of California's electricity - far more than solar, wind and biomass projects - and its capacity again is growing.

The Geysers is part of a nationwide boom. A recent report from the Geothermal Energy Association in Washington, D.C., showed a 40 percent increase in the number of geothermal projects around the country in just the last year. It said 86 new projects are under way in 12 states with a potential capacity of 3,368 megawatts. In California, one megawatt is enough to power 1,000 homes for a year.

In fact, it's a global phenomenon. "Geothermal is a hot topic around the world," said ThermaSource's Capuano, a big man with a lot of Mississippi still in his voice.

The Union of Concerned Scientists offers a good overview explanation of the geothermal potential in the U.S. here. The summary paragraph reads:

The U.S. Geological Survey estimates the geothermal resource base in the United States to be between 95,000 and 150,000 MW, of which about 22,000 MW have been identified as suitable for electric power generation. Unfortunately, only a fraction of this resource is currently utilized, with an installed capacity of 2,800 MW (worldwide capacity is approximately 8,000 MW). But thanks to declining costs and state and federal support, geothermal development is likely to increase. Over the next decade, new geothermal projects are expected to come online to increase U.S. capacity to between 8,000 and 15,000 MW. As hot dry rock technologies improve and become competitive, even more of the largely untapped geothermal resource could be developed. In addition to electric power generation, which is focused primarily in the western United States, there is a bright future for the direct use of geothermal resources as a heating source for homes and businesses everywhere.