Thursday, June 19, 2008

How to Talk to a Climate Skeptic


Below is a complete listing of the articles in "How to Talk to a Climate Skeptic," a series by Coby Beck containing responses to the most common skeptical arguments on global warming. There are four separate taxonomies; arguments are divided by:

* Stages of Denial,
* Scientific Topics,
* Types of Argument, and
* Levels of Sophistication.

Individual articles will appear under multiple headings and may even appear in multiple subcategories in the same heading.

Very interesting resource, check it out at Gritsmill.

Genetically Engineered Bacteria May Help Produce Biofuels

Researchers at Duke University are hoping to develop methods to reversibly turn off harmful or unwanted genes in bacteria. If they succeed, gene silencing could be used to treat persistent infections by turning off antibiotic resistance genes in bacteria and in environmental and industrial applications, including water filtration. The technique could also make it possible to engineer bacteria to more efficiently make biofuels and other industrial products.

For details, go to Technology Review.

Motorcycles Pollute More Than SUVs

Motorcycles and scooters are an appealing alternative to shelling out big bucks filling up the family truckster, which is one reason sales are going through the roof. But riding on two wheels may not be any more environmentally responsible than riding on four.

Turns out the average motorcycle is 10 times more polluting per mile than a passenger car, light truck or SUV. It seems counter-intuitive, because motorcycles are about twice as fuel-efficient as cars and emit a lot less C02.

So what gives?

Susan Carpenter lays it all out in a Los Angeles Times column. She found that, although motorcycles and scooters comprise 3.6 percent of registered vehicles in California and 1 percent of vehicle miles traveled, they account for 10 percent of passenger vehicles' smog-forming emissions.

Motorcycle engines are twice as efficient as automobile engines, she notes, so they generally emit less carbon dioxide. But they emit large amounts of nitrogen oxides, which along with hydrocarbons and carbon monoxide are measured by state and federal air quality regulators to determine whether vehicles meet emissions rules.

Catalytic converters and other emissions control devices would clean things up, but they're often too big, too heavy or too hot to install on motorcycles.

From Wired.

How To Run Your Car on Free Vegetable Oil in 8 Easy Steps

Wouldn’t it be great to pack-up the car or the SUV for a weekend excursion without fretting over the cost of fuel? Or take that road trip you and your friends keep talking about? All with no concern about pumping all of your hard-earned cash into the gas tank. Heck, it would be great just to drive around town without that concern. Here’s how you can do it.

If you spend $50/week on fuel, it will take one year and two months for your program to pay for itself.

Read from The Traveler's Notebook.

Tuesday, June 10, 2008

Rotating Wind Power Tower to begin construction in Dubai


This self-sufficient, sun and wind powered design is making headlines once again as the Italian-Israeli architect has just unveiled the latest design for his twirling tower, and construction is set to begin this month!

The Dynamic Architecture building has been aptly named Rotating Tower as the floors would be capable of rotating around a central axis. It will be continually in motion, changing shape and giving residents the ability to choose a new view at the touch of a button. The form of the building would constantly change as each floor rotates separately giving a new view of the building as it turns. According to Fisher, the building ensures a very high resistance to earthquakes as each floor rotates independently.

The new tower is the first building of its size to produced in a factory. Each floor, made up of 12 individual units, complete with plumbing, electric connections, air conditioning, etc., will be fabricated in a factory. These modular units will be fitted on the concrete core or spine of the building at the central tower.

The 59-floor building will be powered entirely by sun and wind energy. And, the architect claims that the building will generate 10 times more energy than required to power it, thus making it a positive energy building. Solar panels will be fitted on the roof to harness sunlight, and a total of 48 wind turbines will be sandwiched between the rotating floors, placed so that they are practically invisible. Each wind turbine could produce up to 0.3 megawatt of electricity, and it is estimated that 1,200,000 kilowatt-hours of energy would be generated every year.


From inhabitat.

60% of today’s oil price may be pure speculation


The price of crude oil today is not made according to any traditional relation of supply to demand. It’s controlled by an elaborate financial market system as well as by the four major Anglo-American oil companies. As much as 60% of today’s crude oil price is pure speculation driven by large trader banks and hedge funds. It has nothing to do with the convenient myths of Peak Oil. It has to do with control of oil and its price. How?

As a result, over the past two years crude oil inventories have been steadily growing, resulting in US crude oil inventories that are now higher than at any time in the previous eight years. The large influx of speculative investment into oil futures has led to a situation where we have both high supplies of crude oil and high crude oil prices.

Compelling evidence also suggests that the oft-cited geopolitical, economic, and natural factors do not explain the recent rise in energy prices can be seen in the actual data on crude oil supply and demand. Although demand has significantly increased over the past few years, so have supplies.

Over the past couple of years global crude oil production has increased along with the increases in demand; in fact, during this period global supplies have exceeded demand, according to the US Department of Energy. The US Department of Energy’s Energy Information Administration (EIA) recently forecast that in the next few years global surplus production capacity will continue to grow to between 3 and 5 million barrels per day by 2010, thereby “substantially thickening the surplus capacity cushion.”


Read explanation from globalresearch.ca

ZENN Motors Claims Ultracapacitors Is Holy Grail for Electric Cars


Ultracapacitors: the future of electric cars or the ‘cold fusion’ of autovation?

ZENN Motors says its electric car will cruise for 250 miles on a single five-minute charge. Skeptics cry shenanigans.

Ian Clifford wants to start a global revolution by building a practical, everyday car with no gasoline engine, no batteries, and no emissions.

While big Detroit automakers ponder a future plug-in car that goes 40 miles on a battery charge before its gas engine kicks in, Mr. Clifford’s tiny ZENN Motor, a Toronto maker of low-speed electric cars, announced in March that it will build a new highway-speed (80 m.p.h.) model that goes 250 miles on a charge – and can recharge in just five minutes.

Having no batteries, the new “cityZENN” model will use a breakthrough version of a common electrical storage device called an ultracapacitor to store power from a wall socket, the company says. Fuel costs to operate it would be about one-tenth of today’s gas-powered vehicle.

If that astounding claim is real (and there are many skeptics), it could revolutionize automotive travel by making all-electric cars competitive with gas-powered vehicles and easing the world’s dependence on oil.

The reported breakthrough was made by ZENN’s business partner EEStor, a Cedar Park, Texas, firm headed by respected computer industry veteran Richard Weir, who’s named on the company’s patent. The company is now nearing commercial production of its new “electrical energy storage unit” or EESU, Clifford says.

But privately held EEStor has had little to say publicly or to the press – and that secretiveness has inspired incredulity among many debating the topic on Internet forums.

But in a break with that tradition, Tom Weir, the company’s vice president and general manager, responded to e-mailed questions.

“EEStor’s technology has the opportunity to touch every aspect of daily life from very big to very small devices,” Mr. Weir writes. “We also see a whole new generation of products … based around our technology.”

Added credibility arrived with the January announcement by Lockheed Martin, the big defense company, of an agreement to use EEStor technology for military and homeland security applications. It refers to the EEStor “ceramic battery” providing “10 times the energy density of lead-acid batteries at 1/10th the weight and volume.”

In 2005, Kleiner Perkins Caufield & Byers sunk $3 million into EEStor. ZENN also invested $3 million and will get exclusive rights to retrofit vehicles with the system – and produce new mid-size cars using EESUs.



Read from the Christian Science Monitor

Tuesday, June 3, 2008

Is There a Solution to the "Continent of Plastic" that Pollutes the Pacific?


The UN Environment Program estimates that there are 46,000 pieces of plastic litter in every square mile of ocean, and a swirling vortex of trash twice the size of Texas has spawned in the North Pacific.

Plastic bags, once icons of customer convenience, cost more than 1.6 billion barrels of oil per year and leave the environment to foot the bill. Each year the world produces 500 billion bags, and they take up to 1,000 years to decompose. They take up space in landfills, litter our streets and parks, pollute the oceans and kill the wildlife that eat them.

Eco-friendly legislation that targets the production and distribution of plastic bags has been introduced in Israel, San Francisco, Ireland and China. Addiionally, a recent scientific discovery (see below) offers a potential long-term solution to the global plastic crisis.

Since stories have started surfacing more recently, many have wondered, if the rumors are true. Are there really 'continents', or massive floating garbage patches residing in the Pacific? Apparently, the rumors are true, and these unsightly patches are reportedly killing marine life and releasing poisons that enter the human food chain, as well. However, before you start imagining a plastic version of Maui, keep in mind that these plastic patches certainly aren't solid surfaced islands that you could build a house on! Ocean currents have collected massive amounts of garbage into a sort of plastic "soup" where countless bits of discarded plastic float intertwined just beneath the surface. Indeed, the human race has really made its mark. The enormous Texas-sized plastic patch is estimated to weigh over 3 million tons.

Sadly, marine researcher Charles Moore at the Algalita Marina Research Foundation in Long Beach says there’s no practical fix for the problem. He has been studying the massive patch for the past 10 years, and said the debris is to the point where it would be nearly impossible to extract.

"Any attempt to remove that much plastic from the oceans - it boggles the mind," Moore said from Hawaii, where his crew is docked. "There's just too much, and the ocean is just too big."

"When oil prices soared in 2005, that changed a lot of people's perspective, because bioplastic became quite cost-competitive," she says. "All of a sudden it wasn't just about doing the right thing."

Read from the Daily Galaxy.

Solar-Powered Speedboat


The Dutch have created the Czeers MK1 – the first solar-powered speed boat – which will help bridge a friendship between the love of speed and the love of the environment.

We’ve seen solar-powered boats around here before, but nothing as zippy as this. Reaching speeds of 30 knots and producing far less noise and pollution than its peers, this boat is 33 feet long and is covered in 150 square feet photovoltaic cells.

It’s pricy (a measly $1.1 million), but if you are torn between wanting the wind through your hair and your eco-conscience, then this boat could be worth the extra dough. It is definitely a luxury boat, as the creators added top-of-the-line features like leather interior and touch-screen-based control systems. Okay, so these elements take quite a bit away from the eco-friendliness of it, but still, progress is progress. At least the solar-step has been made to get those conspicuous consumers on board. Now they can start working on better choices for construction materials.

CzeersSolarboats via Eco Geek.