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November 18, 2009 7:12 PM PST

Carbon nanotubes capture greenhouse gases, desalinate water

by Mark Rutherford
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(Credit: Lawrence Livermore National Laboratory )

Carbon nanotech has been applied to everything from boat construction to windshields and now, with a licensing agreement from Livermore Lab, a Hayward, Calif., company will apply it to water desalination and removing carbon dioxide from the atmosphere.

The National Nuclear Security Administration's Lawrence Livermore National Laboratory has licensed a new carbon nanotube technology to its spinoff company Porifera. The company will develop permeable membranes for CO2 sequestration, water desalination, and other liquid-based separations based on discoveries made at Livermore.

The technology integrates carbon nanotubes into polymer membranes, increasing the flux of carbon dioxide capture by two orders of magnitude thanks to the material's unique "nanofluidic" properties. This technique could enable a less expensive method of capturing carbon from coal plants, according to the Livermore. Sequestering CO2, a greenhouse gas emission, is one strategy for curbing global warming, although this particular process has yet to prove out on a industrial scale.

"The technology is very exciting," said Olgica Bakajin, former Livermore scientist and now chief technology officer at Porifera. "The reason it makes sense to do it is because of the unique nanofluidic properties of carbon nanotube pores. It's at the right place to take it to the marketplace."

Nanotubes are graphitic layers wrapped into cylinders a few nanometers in diameter, (approximately 1/50,000th the width of a human hair) and up to several millimeters long. Their extraordinary strength and unique electrical and thermal conductive properties make them attractive for many applications.

Porifera is funding the carbon capture project with a $1 million-plus grant from the U.S. Department of Energy's Advanced Research Projects Agency. It's pursuing the water purification angle with a $3.3 million DARPA grant to develop small, portable self-cleaning desalination systems.

Originally posted at Military Tech
November 18, 2009 5:10 PM PST

iPhone app scans bar codes for health, enviro ratings

by Elizabeth Armstrong Moore
  • 14 comments
(Credit: GoodGuide)

Just in time for the crazed holiday shopping season, San Francisco-based GoodGuide releases the first iPhone app that lets you scan bar codes for what the guide calls "impartial" health, environmental, and social responsibility ratings of not only the products you are scanning but their companies, too.

GoodGuide's free app lets you scan an item's bar code and instantly retrieve info on that product's health, environmental, and social responsibility ratings.

(Credit: GoodGuide)

As our Webware staff wrote in August, "GoodGuide is the reason we have awards for tech services and products: it's a small and relatively unknown service that demonstrates real leadership on the Web." And as we report in Health Tech just this week, GoodGuide is an invaluable resource when shopping for toys, as it provides the levels of lead, mercury, chlorine, etc., that might be in the toys.

But GoodGuide's newest app is quite possibly the group's pinnacle achievement thus far. Now, instead of having to be organized enough to do your research online before hitting the stores, or using the app's 2008 iteration, which involves entering a product into a GoodGuide database on your phone, now anyone with an iPhone can literally scan bar codes while shopping.

Seriously, this could become a tick. I kind of want to spend all day scanning bar codes with the same fervor I used to pop package bubbles as a kid. As GoodGuide spokesperson Suzanne Skyvara (mother of two boys, ages 8 and 5) tells me in a delightful English accent that somehow makes everything sound healthy and socially responsible: "It's making it easier to be good. We all want to do this, but god, who's got the time to research it all?"

I envision scoffing with delight at the higher-priced products that don't actually measure up to their less expensive counterparts, a discovery likely as satisfying as catching a poker player mid-bluff. Or, conversely, I can see justifying a slightly more expensive product that is far healthier for my body and environment.

Of course, the value of such a system hinges on how good the information is. GoodGuide licensed Occipital's RedLaser bar code-scanning technology for this app and culled ratings for more than 62,000 food, personal care, household chemical and toy products and companies, and plans to add thousands more every month. Learn more about GoodGuide's rating system here.

Best of all, of course, is that GoodGuide's app is free--a fact that also sounds delightful in an English accent. All you need is the funds to own an iPhone, but that's a different story.

Originally posted at Health Tech
Elizabeth Armstrong Moore is a freelance journalist based in Portland, Ore. She has contributed to Wired magazine, The Christian Science Monitor, and public radio. Her semi-obscure hobbies include unicycling, slacklining, hula-hooping, scuba diving, billiards, Sudoku, Magic the Gathering, and classical piano. She is a member of the CNET Blog Network and is not an employee of CNET.
November 18, 2009 11:58 AM PST

Cleantech Open winner offers stable environment

by Candace Lombardi
  • 1 comment

EcoFactor has been awarded Cleantech Open's national award, which includes $100,000 in seed capital.

The awards ceremony for one of the leading environmental start-up competitions took place at the Masonic Center in San Francisco following a day-long conference in which contestants and venture capitalists had a chance to mingle.

EcoFactor has developed software that works in conjunction with a two-way thermostat to better maintain stable desired temperatures in homes. The system relies on outside data like weather as well has the thermal habits of the home, and self-regulates based on those factors. The process helps heating and cooling home systems run 20-30 percent more efficiently, according to company statistics.

"Being named the Cleantech Open national winner really validates our solution and our business model, and proves that the market is looking for energy-efficiency solutions that don't ask people to change their behavior or sacrifice comfort," EcoFactor CEO and co-founder John Steinberg said in a statement.

Out of the 12 national finalists, there were also 2 chosen as runners-up: Micromidas, which developed a process for converting raw sewage into biodegradable plastic products and Alphabet Energy, a team from the Lawrence Berkeley National Laboratory with a system that produces electricity from waste heat.

November 11, 2009 11:35 AM PST

Powering cell phone towers with wind

by Candace Lombardi
  • 5 comments

Helix Wind's The S322 vertical wind turbine

(Credit: Helix Wind)

Helix Wind announced Wednesday that it's beginning a trial run in Southern California to see if its wind turbines might be useful for powering cell phone towers.

The manufacturer is becoming known for its small vertical-axis wind turbines that can generate electricity with winds as low as 10 mph, as well as its unique business model to finance them.

The pilot program, conducted in conjunction with cell phone tower operator Core Communications, will experiment with whether the turbines powering cell phone towers could also generate surplus energy to sell back to the energy grid.

If they generate enough surplus power, small wind turbines could provide a new source of income for cell phone tower operators as well as a new power source.

Helix Wind's turbines, which will be installed in early 2010, will run for up to three months before being re-evaluated.

According to statistics provided by Helix Wind, there are approximately 3,500 cell phone towers in Southern California, and another 1,000 expected to be added in the next five years to cover consumer growth.

November 10, 2009 7:11 AM PST

Energy costs to soar if no carbon deal, agency says

by Reuters
  • 34 comments
Reuters

The world faces a surge in energy costs, as well as in planet-warming carbon emissions, unless it can swiftly agree a climate change deal, the International Energy Agency said Tuesday.

Arguing strongly for a global deal at the U.N. Climate Change summit in Copenhagen in December, the IEA said use of fossil fuels will increase quickly if policies remained unchanged.

Without an international agreement on climate change, the ratio of energy spending to gross domestic product for the largest consumer countries would double by 2030.

The world would have to spend an extra $500 billion to cut carbon emissions for each year it delayed implementing a deal on global warming, the IEA said in its annual World Energy Outlook.

"As the leading source of greenhouse-gas emissions, energy is at the heart of the problem and so must be integral to the solution. The time to act has arrived," it said.

IEA Chief Economist Fatih Birol told Reuters in an interview the world needed to stabilize the concentration of greenhouse gas emissions in the atmosphere at 450 parts per million of CO2 equivalent.

"The world needs to go to the 450 parts per million target, not only because of climate change but because of growing problems within our energy system and its possible implications again on the economy," Birol said.

Global energy demand would rise by an average of 2.5 percent per year over the next five years if governments made no changes to their existing policies and measures.

Under these circumstances, which the IEA called its reference scenario, world primary energy demand would rise by an average of 1.5 percent per year over the next two decades.

Oil demand, excluding biofuels, would increase by 1 percent per year to 105 million barrels per day by 2030 from 85 million barrels per day in 2008. This was a slight decrease in its demand forecast, reflecting the impact of the global economic downturn.

Last year the agency, which advises 28 industrialized nations, forecast oil use would reach 106 million barrels per day by 2030.

But the IEA stressed the trend toward heavier use of hydrocarbons would be unabated without a climate change deal.

"Fossil fuels remain the dominant sources of primary energy worldwide in the reference scenario, accounting for more than three-quarters of the overall increase in energy use," it said.

A key driver of energy demand would be inexorable growth in power generation, it said, forecasting in its reference scenario world electricity demand would grow 2.5 percent a year to 2030.

Stressing the need to move away from dependence on fossil fuels, Birol said that without a climate change deal, the European Union's annual energy bill would more than double to $500 billion by 2030, up from $160 billion in the last 30 years.

Oil prices soared to a record of nearly $150 a barrel in July 2008. They then collapsed to less than $33 last December, but have since recovered to around $80.

The price collapse, combined with the credit crisis, choked off investment and the Paris-based IEA has warned the oil market could surge back, damaging still fragile economic growth.

Birol said the oil price was likely to reach $100 per barrel by 2015 and $190 by 2030: "This means that if we don't do anything to our energy system, we will be in difficulty."

Bank of Ireland analyst Paul Harris said the IEA had taken a "rather cautious approach" in the report.

"There's an emerging consensus that the demand and supply balance is really going to start to tighten by 2015 which should sound the death knell for cheap oil."

Story Copyright (c) 2009 Reuters Limited. All rights reserved.

Additional stories from Reuters

  1. Top climate change expert hopes science got it wrong
  2. Climate talk collapse better for planet: NASA's Hansen
  3. Canadian Solar plans plant in Ontario, shares rise
  4. EU carbon up as banks buy ahead of summit
October 29, 2009 11:27 AM PDT

G-Oil bio-based motor oil now available for cars

by Candace Lombardi
  • 5 comments

GET's 5W-30 G-Oil.

(Credit: Green Earth Technologies)

Green Earth Technologies (GET) announced Wednesday that its environmentally friendly motor oil for cars will soon be available on shelves across the U.S.

The manufacturer of the biodegradable, carbon neutral motor oil made in part from the animal fat of beef slaughter byproducts has been waiting on certification from the American Petroleum Institute before selling its G-Oil to the public.

G-Oil has received API starburst certification, a symbol put on a product's packaging to signify it meets specific standards and is recommended for use by leading vehicle manufacturers. GET's car oil was additionally granted the API service symbol donut, a seal signifying an oil product has "energy-conserving properties in a standard test in comparison to a reference oil."

Until recently, GET has only been selling a 2-cycle G-Oil and a 4-cycle 10W-30 G-Oil for use in small-motor things like lawn mowers and tractors.

Now that the API approval has come, GET, which will be showcasing new products at the AAPEX show in Las Vegas next week, says consumers will begin to see its G-Oil motor oil for cars and trucks at leading national chains. It already began selling its product at National Auto Stores, a Pennsylvania-based chain, as of October 1.

The announcement is not just good news for a company. If the majority of the general public starts buying motor oil that biodegrades rather than taints groundwater, it could have a meaningful impact on the environment. Used motor oil from a single oil change that is dumped into the ground can contaminate about 1 million gallons of fresh water, according to the Environmental Protection Agency.

But, of course, the motor oil has to work well with your car.

While the International Motor Sports Association's American Le Mans Series has adopted G-Oil as its official motor oil of choice, the real test will be whether or not the American driving public and car enthusiasts like how it performs in their cars.

While no formal announcement has been made, it's likely a deal is in the works with the retailers already carrying G-Oil for small motors. This would include chains like Amazon.com, Home Depot, Ace Hardware, and True Value, among others.

October 26, 2009 1:37 PM PDT

Google's warm reception for secretary of energy

by Tom Krazit
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Google CEO Eric Schmidt (left) and U.S. Secretary of Energy Steven Chu at Google headquarters Monday.

(Credit: James Martin/CNET)

MOUNTAIN VIEW, Calif.--For a bunch of search engineers, Google employees care an awful lot about energy and the environment.

Google hosted an event for employees Monday featuring Steven Chu, the U.S. secretary of energy under President Obama and a man Chief Executive Eric Schmidt said "may become one of the most influential scientists of our generation, if he isn't already." Chu took about an hour to speak to a packed room of Google employees following his announcement of $151 million in funding for new energy-related projects as part of the ARPA-E program.

Chu found a friendly audience of some of the most science-and-technology-obsessed individuals in a region known for science and technology obsession. He called the need to invest in alternative fuels and energy systems "the engineering and science challenge of our time" that will demand contributions from young scientists and technologists like the ones in Mountain View.

Several employees asked Chu to opine on the viability of various alternatives to fossil fuels, such as nuclear and geothermal, and the need to reduce carbon through a cap-and-trade system and carbon sequestration. Here Chu jostled a bit with Schmidt, who said he is skeptical about cap-and-trade systems and the ability of the nuclear industry to solve thorny problems like waste disposal and safety.

Congress is considering cap-and-trade legislation at the moment, and Chu is scheduled to testify before Congress on Tuesday about the need for such legislation. Schmidt isn't sure a global system can work because of the tendency for "rogue nations" to do as they please, but Chu thinks if carbon measurement systems are improved, hard data will make it easier to encourage those who are overproducing carbon to get their act together.

And on nuclear, Schmidt bemoaned the lack of standards in nuclear plant construction, saying "the human factors are a disaster" with every plant a little different than its counterparts and the waste issue still unsolved. Chu didn't debate the point, but said the nuclear industry is moving more toward solving those problems and improving safety.

Those were minor policy disagreements, however: Google and the current Department of Energy are definitely friends. Schmidt called Chu one of his heroes, and Chu praised Google's work on reducing the energy consumption of its servers and assuming a "leadership position" in reducing the carbon footprint of its operation.

Schmidt, who serves as an adviser to the administration on President Obama's Council of Advisers on Science and Technology, asked Chu what it's like being the senior scientist in the government. He's actually the first scientist to hold the secretary of energy position, and won the Nobel Prize in Physics in 1997.

"It's funny in a macabre sort of way. I don't think Congress treats me like your average cabinet member," Chu said with a wry chuckle. He said he's spent much of his first year on the job talking to Congress about the problems with energy use and the environment, and that legislators are receptive, for the most part.

"I think the president has made it very clear that science plays such an integral role in the decisions we have to make," Chu said. He was preaching to the choir at the Googleplex.

Originally posted at Relevant Results
October 1, 2009 6:38 AM PDT

U.S. geothermal could supply 7 million people

by Candace Lombardi
  • 15 comments

If current projects under development are completed, the U.S. could have as much as 10 gigawatts of geothermal power at its disposal, according to a new report from the Geothermal Energy Association.

Through several extraction methods, geothermal energy harnesses heat from the Earth for the purpose of heating and cooling buildings or for power generation. Many have argued for years that geothermal is an underestimated resource for clean electricity.

There are currently 144 new geothermal projects under development in 14 states. If successful, those projects could add up to 7,100 megawatts (7 gigawatts) of power to the existing 3,100 megawatts of U.S. geothermal energy output. That would give the U.S. a total of roughly 10 gigawatts of power capacity from geothermal energy, according to data from the GEA's report (PDF) released Wednesday.

"At the high end, that would be enough baseload power to supply about 20 percent of California's total electric power in 2008--or enough generating capacity to supply the power needs of about 7.2 million people," the GEA said.

The GEA gives a state-by-state breakdown, listing how many new geothermal projects are under way and the potential amount of energy they could collectively generate. Nevada leads with 64 new projects that could add a geothermal capacity of up to 3,473 megawatts. California, Oregon, Utah, and Idaho follow respectively, with capacities ranging from 238 MW to 2,436 MW. Here's the breakdown:

  1. Nevada, 64 projects, potential 1,876-3,473 MW
  2. California, 37 projects, potential 1,842-2,436 MW
  3. Oregon, 13 projects, potential 317-368 MW
  4. Utah, 10 projects, potential 272-332 MW
  5. ... Read more
September 30, 2009 7:01 AM PDT

Eco-pods: Seeing green again for Filene's Basement

by Candace Lombardi
  • 2 comments

Artist's rendering of what an Eco-Pod configuration could look like on the old Filene's Basement site in Boston's Downtown Crossing.

(Credit: Howeler Yoon Architecture)

Howeler Yoon Architecture has proposed that an algae farm and vertical garden be erected at the old Filene's Basement site in Boston's Downtown Crossing.

The prefabricated design of interlocking pods containing algae-incubators on the inside and plants on the outside would be a temporary structure until the city of Boston, the site's owners, and the new owner of the bankrupt Filene's Basement chain agree on what to ultimately do with the historic Washington Street real estate.

But it's not just a one-off idea for the Filene's Basement spot.

Howeler Yoon, which is collaborating with Squared Design Lab, proposes placing its Eco-Pods on transition real estate throughout the city instead of leaving the sites to lie fallow while developers and officials spend months working through zoning, financial, and legal webs.

The pods, which are used as incubators for growing algae for biofuel, can be configured in several ways depending on the needs of a given site. Individual pods can also be rented out by researchers for algae-based projects, according to Howeler Yoon.

The spaces that form between the attached pods allow for planting and creating a vertical garden.

While the pods and their cranes look eerily futuristic, it's not such a far-out idea. The U.K.'s Institution of Mechanical Engineers released a report in August that suggested algae-cultivating buildings as one idea toward mitigating climate change. And just recently, PNC Financial Services Group unveiled a vertical garden spanning 2,380 square feet on the south side of its downtown Pittsburgh headquarters.

Clarification at 5:40 a.m. PDT October 1: Squared Design Lab is a collaborator on the project.

September 23, 2009 6:32 AM PDT

Pittsburgh gets its own Green Monster

by Candace Lombardi
  • 10 comments

PNC's green wall in downtown Pittsburgh.

(Credit: PNC)

On Tuesday PNC Financial Services Group unveiled what it claims to be the "largest green wall in North America."

Certainly, the wall is taller and "greener" than Fenway Park's famous 37-foot-high Green Monster in Boston.

The PNC wall is a living, breathing wall of plants spanning 2,380 square feet on the south side of the bank's Pittsburgh headquarters, at the corner of Fifth Avenue and Wood Street. The wall is made up of 602 two-foot square panels. Each panel contains 24 evergreen plants.

"The vertical garden, similar to a green roof, will help to cool the 30-story building. Preliminary studies show the south-facing living wall will be 25 percent cooler behind the wall than ambient temperatures," PNC said in a statement.

Currently, the wall is shades of green with darker green plants placed to create the bank's logo, but this spring some of the evergreen plants will bloom creating more color and changing the design.

The wall, similar in functionality to a green roof, was designed by Kari Katzander of Mingo Design, and built by Green Living Technologies and Cenkner Engineering Associates.

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About Green Tech

Innovation in energy and environmental technologies is long overdue, in business and at home. Green-tech guru Martin LaMonica and other CNET writers serve up fresh clean-tech news and commentary.

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