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New test enables better tracking of fracking pollution

Signs of oil and gas development are visible on a landscape level from 35,000 feet in the air.

Signs of oil and gas development are visible on a landscape level from 35,000 feet in the air.

Stable tracers can help pinpoint ground and surface water contamination

Staff Report

FRISCO — There’s more and more evidence that fracking wastewater can — and sometimes does — pollute ground and surface water, but it’s not always easy to trace the pollution, especially since drillers often keep secret their fracking fluid recipes.

But after field tests at a spill site in West Virginia and downstream from an oil and gas brine wastewater treatment plant in Pennsylvania, scientists say they can reliably identify hydraulic fracturing flowback fluids that have been spilled or released into the environment by using stable boron and lithium tracers that distinctive chemical fingerprints. Continue reading

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Environment: Federal appeals court focusing on toxic ozone smog in Utah’s Uinta Basin

EPA challenged on decision to designate polluted region as unclassifiable

Western U.S. Counties Violating Current and Proposed Ozone Air Quality Standards.

Western U.S. Counties Violating Current and Proposed Ozone Air Quality Standards. Map courtesy Jeremy Nichols/ClimateWest blog.

By Bob Berwyn

FRISCO — Environmental advocates and the EPA are facing off in a federal appeals court in Washington, D.C. today over air quality in Utah’s remote Uinta Basin, where ozone levels often exceed standards set to protect human health.

In a weird twist to the case, the fossil fuel industry is claiming that its own air pollution data is of poor quality and unreliable, and shouldn’t be used by the EPA to designate the Uinta Basin as a nonattainment area, despite the fact that the area regularly sees some of the highest ozone pollution levels in the country.

At issue in the oral arguments is the EPA’s refusal to designate the Uinta Basin as a nonattainment area despite monitoring showing serious air quality degradation in northeastern Utah. The EPA’s decision to designate the area as unclassifiable is a clear violation of the Clean Air Act, according to WildEarth Guardians, one of the groups involved in the case. Continue reading

Human disturbance the key factor driving changes in eastern forests

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A new study finds that human disturbance drives forest changes in eastern U.S. bberwyn photo

Fire suppression, land-clearing outweigh climate factors, study says

Staff Report

FRISCO — Climate change may only be a secondary factor in the changing composition of Eastern forests. Changes in disturbance regimes have had a much bigger impact in the past century or so, according to Marc Abrams, a researcher in Penn State’s College of Agricultural Sciences.

Abrams says eastern forests are still in a state of disequilibrium resulting from massive clear-cutting and burning during the late 1800s and early 1900s, and aggressive forest fire suppression has also had a far greater influence on shifts in dominant tree species than minor differences in temperature. Continue reading

Environment: Tracking pharmaceutical pollutants up the food chain

Fish-eating ospreys not showing signs of contamination

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Ospreys so far are not picking up significant amounts of pharmaceutical pollution found in many streams and rivers around the world. bberwyn photo

Staff Report

FRISCO — Pharmaceutical compounds from makeup and drugs are turning up in streams and rivers all over the world, even in remote Yucatan cenotes, but for now, they don’t seem to be working their way up the food chain.

The chemicals have been finding their way into the environment, primarily through wastewater, urban runoff and even biosolids applied to agricultural lands, but he impact on wildlife is unknown, so researchers with the U.S. Geological Survey and Baylor University teamed up to try and track the pollutants through the food chain by testing ospreys. Continue reading

Climate: Record global warmth in September 2014

Year to-date tied as warmest on record

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Warm, warmer, warmest.

Staff Report

FRISCO — This year is on pace to become the warmest on record, as the National Climatic Data Center reported today that September’s average global temperature hit a new all-time high. Three of the last four months have been record-warm. Visit the NCDC site for the full report.

Once again, warm ocean temperatures prevailed during the month, reaching 1.19 degrees Fahrenheit above the 20th century average, the warmest reading for any month of any year on record, dating back to 1880. Continue reading

Environment: Bulkhead a big step in Peru Creek cleanup

All-out remediation effort targets acid mine drainage near Keystone Ski Area

Remediation work in progress at the Pennsylvania Mine site in Summit County, Colorado. Photo via Snake River Watershed Task Force.

Remediation work in progress at the Pennsylvania Mine site in Summit County, Colorado. Photo via Snake River Watershed Task Force.

By Bob Berwyn

FRISCO — For decades, the abandoned Pennsylvania Mine has been oozing heavy metals — zinc, manganese, cadmium, lead and and arsenic — into the waters of Peru Creek, a small tributary of the Snake River near Keystone, Colorado. The site has been the focus of intensive study during the past 15 years with the goal of improving water quality downstream.

Last week, engineers and environmental experts took a big step toward trying to staunch that flow by blocking one of the mine tunnels. If all goes well, the new bulkhead could reduce the direct discharge from the mine by about two-thirds, said Jeff Graves, a remediation expert with the Colorado Division of Reclamation Mining and Safety.

Graves explained that the new plug should force the water back into its natural underground pathways, trickling and percolating down through layers of rock and earth, and not as prone to the oxidation that’s key in the formation of acid mine drainage. Essentially, the work will restore the groundwater flow to more natural, pre-mining conditions, he said. Continue reading

Morning photo: Seasonal splendor

Bright as a berry …

Autumn berries.

Autumn berries.

FRISCO — A spectacular weekend in the Colorado high country, and as much as some skiers and snowboarders are eager for cold weather and snow, we’ll take the lingering summer-like weather for now. Winter is long enough, so enjoying a few balmy days in late October is a good thing. And with the weekend weather dominated by a subtropical flow, we even got some monsoon-like cloud cover to brighten up the morning and evening skies. Check us out on Instagram for daily photo updates, and visit our online gallery for fine art quality prints and greeting cards. Continue reading

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