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Thursday, April 14, 2011
Organic news 14th April 2011
Wednesday, April 13, 2011
Shale Fail
Shale gas is widely touted as a "clean" fossil fuel that can serve as a bridge to renewable energy. But according to a new study by Cornell University researchers, it actually has a larger carbon footprint than coal, oil and conventional natural gas, at least over a 20-year period. That's largely because shale-gas wells leak large amounts of methane - a component of natural gas, but also a potent greenhouse gas, even more effective at trapping heat than carbon dioxide. When leaked methane is calculated with the greenhouse gases emitted by burning shale gas, the fuel loses much of its green luster, the study's authors argue.
"The large greenhouse gas footprint of shale gas undercuts the logic of its use as a bridging fuel over coming decades, if the goal is to reduce global warming, " lead author Robert Howarth tells the AFP. "The full footprint should be used in planning for alternative energy futures that adequately consider global climate change." Shale drilling already faces scrutiny for its use of hydraulic fracturing, or "fracking," in which pressurized water, sand and chemicals are pumped deep underground to loosen rock and release more gas. While the EPA investigates claims that fracking poisons groundwater, however, Howarth says he's found an even bigger flaw with shale drilling - one that belies the very argument used to justify the current U.S. shale-gas boom. Plus, he points out that his team's calculations for methane leakage are based on "best practices" estimates, but that actual leakage rates could be much higher. "No one knows for sure to what extent industry uses best practices; and unfortunately, at least in the U.S., industry does not want government or the public to know," he says. "The [EPA] has proposed rules that would require industry to report methane emissions, but several companies have sued the EPA to try to prevent such reporting."
According to the U.S. Energy Department, the country's total natural gas output will grow by 20 percent in the next 25 years, at which point nearly half of all U.S. gas production will come from shale - up from just 16 percent in 2009. Shale gas is increasingly popular because vast deposits exist underneath the U.S., and because new drilling techniques like fracking make it more economical to extract. It has looked especially good to many ever since Japan's nuclear crisis began last month, too. But as Howarth argues, it's unwise to look at shale gas through green-colored glasses. "We should not proceed to view shale gas as a 'transitional fuel' to be used over the next few decades to replace other fossil fuels," he says, "but rather work harder to move toward truly green renewable fuels as quickly as possible, such as wind and solar."
(Sources: Mother Nature News Network, The Hill, BBC News, Agence France-Presse, e! Science News)
Tuesday, April 12, 2011
Supervalu & Organic Growers: partnering up

Sunday, April 10, 2011
Farm Diversification - piecemeal or significant?

Thursday, April 7, 2011
V. D. Kaviraj comes to Ireland

Sunday, April 3, 2011
Forming Co-ops and groups for organic farmers
Wednesday, March 23, 2011
Learning about Butterflies and Moths

Why should we care about butterflies and moths? Thanks to butterflies, bees, birds, and other animal pollinators, the world's flowering plants are able to reproduce and bear fruit. That very basic capability is at the root of many of the foods we eat. And, not least, pollination adds to the beauty we see around us.
Yet today, there is evidence of alarming pollinator population declines worldwide. Fortunately, science investigators of this crucial issue can use data collected and organized in the Butterflies and Moths of North America (BAMONA) database to monitor the health of our butterfly and moth population.
Backed by more than 287,000 verified sighting records and 3,239 images that describe 4,638 species, BAMONA is committed to collecting and providing access to quality-controlled data about butterflies and moths of North America. Dedicated volunteer coordinators, including national and internationally recognized Lepidoptera experts, verify each record. The goal is to fill the needs of scientists and nature observers by bringing verified occurrence and life history data into one accessible location.
To serve its broad range of users even better, BAMONA recently launched its re-tooled website. The site was developed at Montana State University (MSU) under a cooperative agreement with the U.S. Geological Survey (USGS) National Biological Information Infrastructure (NBII) Network.
BAMONA's latest innovations are aimed at improving technologies for both data collection and data dissemination. Users can now submit records � which typically include a photograph � via the site's new user submission form, replacing an outdated submission process that required multiple e-mails with spreadsheet attachments. As for data dissemination, verified records are now immediately available on the site's home page. New, interactive Google-based maps enable the display of any verified sighting, including Canadian locations. Visitors can now zoom in or out and click on dots pin-pointing sighting locations on interactive maps, and see the details of each sighting record. All these features were not available previously.
For more information, go to www.butterfliesandmoths.org