Energy: BLM eyes new rules for fracking on public lands

Posted on May 16, 2013 by Bob Berwyn
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BLM wants to update 30-year-old fracking regs.

Common sense steps address some environmental and health concerns

By Summit Voice

FRISCO — An updated set of draft rules for fracking on public and Indian lands includes several common-sense safeguards that will help protect the human health and safety, as well as the environment. For starters, the rule requires disclosure of the chemicals used for fracking, a key measure that ensures transparency and gives the public some assurance.

The proposed rule beefs up standards meant to insure well bore-integrity, which will help verify that fluids used during fracturing operations are not contaminating groundwater. Operators must also have a plan in place for handling fluids that flow back to the surface.

About 90 percent of wells drilled on Federal and Indian lands use hydraulic fracturing, but the Bureau of Land Management’s current regulations governing hydraulic fracturing operations on public lands are more than 30 years old and were not written to address modern hydraulic fracturing activities. (more…)

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Biodiversity Is commercial fishing altering ocean food webs?

Posted on May 15, 2013 by Bob Berwyn

New study shows how the diet of pelagic birds has changed over time

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Studying isotopes in the bones of pelagic seabirds helped researchers track changes in thePacific ocean food chain. Bob Berwyn photo.

By Summit Voice

FRISCO — Some in-depth biological detective work suggests there have been drastic changes in open-ocean food webs since the onset of industrial fishing, with potentially significant implications for threatened seabirds.

The key to detecting the changes was analyzing the bones of Hawaiian petrels. The crow-sized oceanic birds range widely over the northeast Pacific, and their diets integrate food webs from that vast area. What the petrels have eaten is recorded in the chemistry of their bones. By extracting protein from bones and feathers and studying stable isotopes of carbon and nitrogen in the protein, the scientists were able to assess the birds’ diet and how it changed over centuries. (more…)

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Colorado: Roan Plateau drilling plan back in federal court

Posted on May 14, 2013 by Bob Berwyn

Fossil fuel industry frustrated by federal delays

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The BLM, conservation groups and the fossil fuel industry are grappling with a development plan for the Roan Plateau in northwest Colorado.

By Bob Berwyn

SUMMIT COUNTY — The fossil fuel industry continues to battle over energy development in court, most recently by asking a federal appeals court to overturn a previous lower court ruling that spurred the Bureau of Land Management to reconsider its plan for northwest Colorado’s Roan Plateau.

Conservation groups joined the battle in late April, filing their response to the latest legal challenge, which would “turn back the clock” to Bush-era energy development policies, according to Earthjustice, which is representing community and environmental groups in the case.

At issue is how many wells will be drilled atop the plateau, which is billed by conservation advocates to have high natural resource values. The fight dates back to a development plan approved by the BLM under the Bush administration. (more…)

Filed under: BLM, Colorado, energy, Environment, gas drilling, oil drilling, public lands | Tagged: , , , , , , , | 1 Comment »

North Carolina dune buggy advocates try a congressional end run to restore motorized access at Cape Hatteras

Posted on May 13, 2013 by Bob Berwyn
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This image from the NASA Earth Observatory program shows where Hurricane Isabel carved a new channel across Hatteras Island in Sept. 2003.

Measure may get OK from anti-environmental House committee, but is unlikely to pass the Senate

By Summit Voice

FRISCO — Fans of motorized beach access in North Carolina are hoping that Congress will overturn a public National Park Service planning process with a bill that would re-open parts of Cape Hatteras National Seashore to dune buggies and other vehicles.

The House Natural Resources Committe, led by anti-environmental Republican extremists, this week will vote on HR 819, a measure that would roll back some restrictions on motorized access at the popular North Carolina beach.

As written, the bill would void a court-approved agreement that protects nesting and baby sea turtles and birds, as well as pedestrians at the seashore. (more…)

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Summit Voice: Week in review & most-viewed stories

Posted on May 13, 2013 by Bob Berwyn
Atmospheric CO2 now at 400 parts per million - how high will it go?

Atmospheric CO2 now at 400 parts per million – how high will it go?

Oil spill, climate and weather stories top the list

FRISCO — Out story on lingering Deepwater Horizon oil spill impacts to Gulf of Mexico aquatic ecosystems got a lot of social media love to become the most-viewed story of the week, while local weather, marked by a series of wet spring storms, also garnered reader attention. Also of note, two Summit Voice photo essays, as well as a guest post by Stan Wagon, also cracked the top 10 list:

A few more stories worth reading from the past week:

 

Filed under: climate and weather, Colorado, Environment, Snow and weather | Tagged: , , , , , | Leave a Comment »

Coral reefs: ‘Business as usual won’t cut it’

Posted on May 12, 2013 by Bob Berwyn
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Coral reef ecosystems are facing serious threats from global warming as well as local impacts. Photo courtesy Renata Ferrari.

Study says concerted global and local action required

By Summit Voice

SUMMIT COUNTY — A detailed new study supports the idea that protecting coral reefs from local impacts like over-fishing and polluted runoff is a key part of any strategy to try and bolster reefs in the face of climate change.

The researchers concluded that, even though coral reefs are in decline, their collapse can be avoided with concerted global and local action.

“People benefit by reefs’ having a complex structure—a little like a Manhattan skyline, but underwater,” said Peter Mumby, of The University of Queensland and University of Exeter. “Structurally complex reefs provide nooks and crannies for thousands of species and provide the habitat needed to sustain productive reef fisheries. They’re also great fun to visit as a snorkeler or diver. If we carry on the way we have been, the ability of reefs to provide benefits to people will seriously decline.” (more…)

Filed under: biodiversity, climate and weather, coral reefs, Environment, global warming | Tagged: , , , , , | Leave a Comment »

Climate: Atmospheric CO2 reaches 400 ppm

Posted on May 11, 2013 by Bob Berwyn

Concentration will wane from seasonal high point, but long-term trend is up

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Mauna Loa. Photo courtesy USGS.

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Carbon dioxide in the atmosphere this week reached a level last recorded 2 to 5 million years ago.

By Summit Voice

FRISCO — Climate scientists have been closely tracking atmospheric carbon dioxide levels for a long time, but this week, the colorless, odorless gas made big headlines.

An atmospheric observatory on Mauna Loa for the first time measured daily concentrations of CO2 at slightly above 400 parts per million, a dubious milestone which, better than any other number, captures the extent to which we are changing the world. (more…)

Filed under: climate and weather, Environment, global warming | Tagged: , , , , , , , , , , | 2 Comments »

Environment: Stockholm Convention tackles persistent organic pollutants with a ban on brominated fire retardant

Posted on May 11, 2013 by Bob Berwyn
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Little by little …

U.S. not party to key international environmental treaty

By Summit Voice

FRISCO — More than 160 countries around the world have agreed to phase out a toxic chemical used as a flame retardant, but the U.S. is on the sidelines.

The agreement to end use of hexabromocyclododecane came within the framework of the sixth Conference of Parties to the Stockholm Convention on persistent organic pollutants, a class of chemicals that can linger in the environment for years and can result in transgenic impacts. (more…)

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Colorado: Smart energy management helps Summit School District realize substantial savings

Posted on May 10, 2013 by Bob Berwyn

‘Energy Navigator’ tracks use, guides active management of heating, cooling and lighting systems

Smart computer-guided energy management is helping the Summit School district save big bucks.

Computer-guided energy management is helping the Summit School district save big bucks.

By Cameron M. Burns

Through a combination of energy efficiency and actively managing energy use, the Summit School District is on track to save more than $100,000 in energy costs this year.

In fact, after investigating the operation of lighting and HVAC equipment at Summit High School in the summer of 2012 with a new energy-management system called the Colorado Energy Navigator, Summit School District facilities manager Woody Bates and his staff were able to cut energy use by more than $50,000 during the three-month June-to-August 2012 period compared to the same period in 2011.

The energy-saving techniques they used are now being replicated across the district. Data compiled by Carbondale-based Clean Energy Economy for the Region show that, eduring the first three months of the school year, (Sept. to Nov.) energy savings across the district totaled about $24,000 compared to the prior year. (more…)

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Study: Human impacts dominant in most ecosystems

Posted on May 9, 2013 by Bob Berwyn
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Nature unbound — or not? Bob Berwyn photo.

‘Even in protected areas, the influence of humans might be greater than we previously thought … ‘

By Summit Voice

FRISCO — As much as we’d like to believe in nature unbound, a new Canadian study suggests that human impacts are more widespread than we realize, even extending well into protected areas.

The five-year study by University of Calgary ecologists, included monitoring wolves, elks, cattle and humans. The resarchers concluded that human activities dominate all other factors, even in protected areas.

“Our results contrast with research conducted in protected areas that suggested food chains are primarily regulated by predators. Rather, we found that humans influenced other species in the food chain in a number of direct and indirect ways, thus overshadowing top-down and bottom-up effects,” said lead author Dr. Tyler Muhly.

The study was a collaboration between NSERC, Shell Canada, Parks Canada, the Alberta Government and the Universities of Alberta and Calgary. The ecologists used dozens of animal tagging devices and motion sensor-activated cameras to study human, animal and plant distribution throughout southwest Alberta. The research area stretched from Calgary in the northeast, through to the provincial borders with British Columbia in the west and the US-Canada border in the south.

“Understanding the significance of the impact that humans have on ecosystems is a critical component in formulating long-term and effective conservation strategies,” said reseacher Marco Musiani. “Our results led us to believe that ecologists have underestimated the impact of humans on natural food chains. The data we collected shows that humans are deliberately or inadvertently engineering ecosystems regardless of whether they would be naturally pre-disposed to top-down or bottom-up effects. Even in protected areas, the influence of humans might be greater than we previously thought,” Musiani said.

Ecologists have long debated whether natural ecosystems and associated food chains are primarily regulated by predators or by the productivity of plant species, called top-down and bottom-up effects, respectively. With most of the world’s ecosystems now dominated by humans, researchers from the University of Calgary sought to understand how much people influenced food chains in southwest Alberta.

“We painstakingly monitored wolves, elk, cattle and plant species, as well as humans for five years. We evaluated how these species interacted across the landscape and ultimately found that humans dominated the ecosystem,” Muhly said.

“In particular, we found that forage-mediated effects of humans (bottom-up effects) were more influential than predator-mediated effects in the food chain. The presence of humans was most correlated with occurrence of forage (plants). Elk and cattle distribution correlated closely with forage, and the distribution of wolves matched that of the elk and cattle they view as potential prey.

Filed under: biodiversity, Environment | Tagged: , , , , , | Leave a Comment »

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