Showing posts with label Green. Show all posts
Showing posts with label Green. Show all posts

Monday, January 28, 2008

Is Congress Finally Ready to Go Green?

As concern over global warming became more and more prominent in the U.S. over the past several years — in the media, in opinion polls, in business and in state governments — the one place where the issue seemed all but invisible was the one place that could really do something about it: Congress. But that began to change in 2007, and nowhere more so than in the Senate's key committee on the environment and public works, which drafts much of the country's environmental legislation. Up until last January, the committee was chaired by Alaskan Sen. James Inhofe, a Republican who memorably called global warming "the greatest hoax ever perpetrated on the American people." When the Democrats took over Congress in the 2006 midterm elections, however, the chairperson's gavel was handed over to Sen. Barbara Boxer of California, and the floodgates opened. Boxer began a series of open hearings on the science of global warming, giving airtime to the sort of experts — including former Vice President Al Gore — who had been suppressed under Inhofe. "As soon as the change took place, I realized that this was going to be one of my number one goals," says Boxer. "Elections have consequences, and this was one of the consequences."

Hours and hours of hearings finally led to a legislative breakthrough in December: the passage out of the committee of the first bill that would put carbon caps on the U.S. economy. Co-sponsored by the Republican Sen. John Warner and the Independent Sen. Joseph Lieberman, the America's Climate Security Act would cap U.S. carbon emissions at 15% below 2005 levels by 2020, with a 70% cut projected for 2050. If enacted, those carbon caps would all but force U.S. businesses to invest in cleaner technology and greater energy efficiency, and would help the country take a leadership role in international climate negotiations.

Similar bills had been put forward over the past several years, only to die in committee. This time, however, Boxer was able to help pull together not only Democrats but also several Republicans on the committee, ensuring relatively bipartisan support. That's key — given how narrowly divided Congress has become, meaningful climate change legislation only has a chance if its supporters can draw allies from across the political aisle. Boxer is confident she can. "The environment has been an issue that has pulled together Republicans and Democrats in the past," she says. "Everyone has to breathe the same air."

The Climate Security Act has passed the first barrier to becoming law, but the road is only going to get tougher. To have a chance in the Senate, the bill needs at least 60 votes — anything less, and opponents can stop it with a filibuster. That will require winning over more conservative Senators, while at the same time ensuring the bill doesn't become so watered down that it loses all effectiveness. And even if the bill were to pass the Senate, and then the House of Representatives, it still has to make it through President George W. Bush, who has shown little inclination to support it. Bush favors what he calls technological solutions to global warming, but without the pressure of carbon caps. "That's like saying let's meet at the field and play baseball, but you don't bring a mitt or a ball," says Boxer. "You can't play the game."

Critics like Bush tend to focus on the economic costs of reducing carbon emissions — through increased energy prices — but Boxer, and many of her supporters, believe that combating climate change can have a net positive effect on the economy. Boxer hails from California, which has already passed the strongest state legislation on climate change, cutting carbon emissions to 1990 levels by 2020. Far from hurting the state economically, Boxer notes, the carbon bill has helped California become the center for green innovation in the U.S., with Silicon Valley venture capitalists pouring billions into alternative energy start-ups. Those businesses will create new, green jobs that should make up for the short-term costs of cutting carbon. "The cure for global warming is positive," says Boxer. "That makes it easy for me to approach it with hope."

Emphasizing the hope, the positive possibilities of dealing with climate change, should also help Boxer broaden the appeal of the Climate Security Act. Americans are worried about global warming, but they're also worried about Iraq, the economy and health care. Make global warming into an economic issue, or an issue of national security, not just an environmental one, and there's a better chance of achieving broad, bipartisan support. Not all environmentalists are happy with the Climate Security Act — it has been criticized by the Sierra Club, among other groups, as too weak. While it could be tightened, the reality is that only a moderate bill is likely to pass soon, and with science telling us that we may have less than 15 years to turn around carbon emissions, we can't afford to hold out for a perfect law. "The longer we wait to do what we need to do, the harder the transition will be," says Boxer. "We're running out of time." She's absolutely right, but at least Congress is no longer standing still.

to the source

Thursday, January 24, 2008

Solar to take on coal within three years!

Solar power will prove as cost effective as electricity from coal-fired power stations within three years, according to a new report from US environmental think tank the Earth Policy Institute.

Released last week, the study predicts that advancements in thin film photovoltaic (PV) cells that can be manufactured using cost-effective printing processes will ensure that production costs reach $1 per watt by 2010, making solar PV competitive with coal-fired electricity.

The report echoes predictions from US solar start up Nanosolar, which last month began shipping printed thin-film solar cells, which it claimed could soon be sold profitably for as little as $0.99 per watt.

The Earth Policy Institute also predicted that traditional silicon-based PV cells would become more cost effective over the next three years as raw material shortages are addressed and production facilities are scaled up.

"The average price for a PV module, excluding installation and other system costs, has dropped from almost $100 per watt in 1975 to less than $4 per watt at the end of 2006," the report noted. "With expanding polysilicon supplies, average PV prices are projected to drop to $2 per watt in 2010."

The study also concluded that PV solar panels are now the world's fastest growing energy source with worldwide production having increased by 50 per cent during 2007 to 3,800MW. It added that global PV cell production to date amounts to about 12,400MW - or enough to power 2.4m US homes.

Tuesday, January 22, 2008

Whole Foods Market Does Away With Plastic Bags

Whole Foods Market is joining the anti-plastic bag movement, announcing today it will end the use of disposable plastic grocery bags at all of its 270 stores in the U.S., Canada & the U.K. It says the goal is to be plastic bag-free by Earth Day, 4/22/08.

The first U.S. supermarket to commit to completely eliminating disposable plastic grocery bags, Whole Foods Market has declared today "Bring Your Own Bag Day" and will give out over 50,000 reusable shopping bags to customers at the checkouts to celebrate the announcement.

The company says beginning immediately, each store will work on depleting stocks of disposable plastic grocery bags at the checkouts and will help raise awareness about the benefits of reusable bags. Over the next three months, stores will reduce plastic grocery bag inventories and increase selections of reusable bags for purchase.

Although the natural and organic grocer says it hopes to inspire shoppers to bring their own reusable bags, the it will continue to offer 100% recycled paper grocery bags. Last year, Whole Foods Market became the first and only food retailer in North America to offer grocery bags made with 100% recycled fiber content.

A.C. Gallo, co-president and chief operating officer for Whole Foods Market, said "More and more cities and countries are beginning to place serious restrictions on single-use plastic shopping bags since they don't break down in our landfills, can harm nature by clogging waterways and endangering wildlife, and litter our roadsides. Together with our shoppers, our gift to the planet this Earth Day will be reducing our environmental impact as we estimate we will keep 100 million new plastic grocery bags out of our environment between Earth Day and the end of this year alone."

Whole Foods Market already encourages shoppers to bring their own bags by offering a refund of either five or ten cents at the checkouts. The company also sells different types of reusable bags, ranging from canvas to a new large bag made from 80% recycled plastic and costing only 99 cents.

Recently, Whole Foods Market stores began using all-natural fiber packaging at its salad and food bars. The fibers for the new containers come from plants that are cultivated or grow wild and are harvested annually. Additionally, the company says it continues to seek alternatives to plastic bags in its bulk, produce, bakery and seafood departments.

"We realize there are many more steps to take, and we recognize it's an ongoing process to provide as much Earth-friendly packaging as possible," said Gallo. "We will continue to evaluate each department within our stores as we seek to continually improve."

to the source

Tuesday, August 14, 2007

Algae - The Holy Grail of Biodiesel - May Soon Be Reality

The biodiesel community has always been marked by spirited enthusiasm, a clear sense of mission, and the dream that biodiesel could one day play a significant role in our energy future. That dream may soon be a reality. Researchers at Utah State University say that farming algae, with reported oil yields of 10,000 gallons per acre, could become an economically feasible biodiesel feedstock by the end of the decade.

This is the Holy Grail of biodiesel: an oil source that could make a serious dent in our fossil fuel consumption. Our most productive feedstock today, the oil palm, doesn't even come close with

yields of 635 gallons/acre, and is followed distantly by the U.S. standard, soy, at 48 gallons of oil/acre.

Producing biodiesel from algae
isn't a new concept, and it's easy to see why: algae grow voraciously (measured by the day), algae can proliferate in heinous growing conditions (saltwater or extreme temperatures), and certain species contain up to 60% oil (by weight).

Put quite simply, microalgae are remarkable and efficient biological factories capable of taking a waste (zero-energy) form of carbon (CO2) and converting it into a high density liquid form of energy (natural oil). This ability has been the foundation of the research program funded by the Office Fuels Development."

Between 1978 and 1996, the Department of Energy (DOE) funded research into technologies that could have significant impacts on the consumption of fossil fuels. The focus of this research became the Aquatic Species Program (ASP), which investigated renewable fuel production (biodiesel) from high-oil algae species, fed by the waste CO2 from coal-fired plants. Researchers whittled down over 3,000 strains of microorganisms into the most productive 300, and constructed 1000 sq. meter test ponds outside of Roswell, NM. The ponds were set up as sort of algae 'race-tracks', where algae were circulated around shallow, oval-shaped ponds as carbon dioxide bubbled through the mixture. Results were successful and encouraging, but the program fizzled out after almost 2 decades (a lot of which had to do with a budget crunch and allocating more resources to researching ethanol). Researchers noted that one obstacle to large-scale algae production may be the high cost, which was estimated to be double the price of diesel at the time. (I wonder what they would say now.)

Utah State may finally take this research to the next level. Scientists there plan to produce algae in a grid of indoor bioreactors, with light captured by parabolic dishes on the roof and fed inside via fiber-optic cables. Put several thousand of these bioreactors together and you have an algae farm:

The solar bioreactor utilizes single cell algae, nature’s most efficient means to convert sunshine to biomass, which contain up to 60% oil by weight.[4] To minimize land and water resources, an enclosed bioreactor is used to grow algae on proprietary vertical membranes that resemble library newspaper racks. Harvesting of algae is achieved by periodically flushing water down the membrane from holes in the top ‘rack’. Mature algae are dislodged and collected in a bottom trough while immature algae cling to the membrane and continue to grow. Sunlight is collected and distributed to vertical panels that are sandwiched in close proximity between the growth membranes, much like alternating plates in a car battery. Oil extracted from mature algae can be converted to biodiesel using well established technologies."

The program has been funded by $6 million in seed money from the Utah Science and Technology Research Initiative, and plans on building the first commercial plant in Utah. USU researchers say algae-biodiesel could become economically feasible by 2009.

Needless to say, this is an exciting project that I will be watching closely.



By Clayton Bodie Cornell