The Environmental Journal of Southern Appalachia

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Monday, 01 November 2021 14:14

From climate change to water quality, UT One Health Day examines the challenges of our time

Charles Henry TurnerCharles Henry Turner

The University of Tennessee One Health Initiative will host an impressive array of climate-related discussions, presentations and museum tours Wednesday, Nov. 3, at the UT Student Union on Cumberland Avenue in Knoxville. A virtual option is also available for the day-long event, which is affiliated with the 6th Annual World One Health Day.

The day will feature a “One Health and Climate Change” expert panel discussion, which is set for noon and includes perspectives ranging from the UT Institute of Agriculture to Oak Ridge National Laboratory.

A kayak outing and trash cleanup along the Tennessee River and its tributaries are also planned, as is a tour of UT Gardens, and the herbarium. McClung Museum at Circle Park will offer up its freshwater mussel collection for closer inspection and host a tour examining archaeology findings related to the indigenous inhabitants of Tennessee.

Check out University of Tennessee One Health Day for a full schedule and more information.

Last modified on Thursday, 01 September 2022 23:03

Fall in SmokiesThis view from Heintooga Ridge Road offers a good vantage point to absorb the brilliant fall colors breaking out across the mountains in North Carolina in Great Smoky Mountains National Park. Research indicates the reliable fall color regime in the Southern Appalachians is affected by climate change.  Courtesy National Park Service

It’s just the latest way humans have altered Appalachian forests

This story originally appeared in the Conversation. Marc Abrams is a professor of forest ecology and physiology at Penn State.

Fall foliage season is a calendar highlight in states from Maine south to Georgia and west to the Rocky Mountains. It’s especially important in the Northeast, where fall colors attract an estimated US$8 billion in tourism revenues to New England every year.

As a forestry scientist, I’m often asked how climate change is affecting fall foliage displays. What’s clearest so far is that color changes are occurring later in the season. And the persistence of very warm, wet weather in 2021 is reducing color displays in the Northeast and mid-Atlantic. But climate change isn’t the only factor at work, and in some areas, human decisions about forest management are the biggest influences.

Longer growing seasons

Climate change is clearly making the Northeast warmer and wetter. Since 1980, average temperatures in the Northeast have increased by 0.66 degrees Fahrenheit (0.37 Celsius), and average annual precipitation has increased by 3.4 inches (8.6 centimeters) — about 8 percent. This increase in precipitation fuels tree growth and tends to offset stress on the trees from rising temperatures. In the West, which is becoming both warmer and drier, climate change is having greater physiological effects on trees.

My research in tree physiology and dendrochronology — dating and interpreting past events based on trees’ growth rings — shows that in general, trees in the eastern U.S. have fared quite well in a changing climate. That’s not surprising given the subtle variations in climate across much of the eastern U.S. Temperature often limits trees’ growth in cool and cold regions, so the trees usually benefit from slight warming

In addition, carbon dioxide — the dominant greenhouse gas warming Earth’s climate — is also the molecule that fuels photosynthesis in plants. As carbon dioxide concentrations in the atmosphere increase, plants carry out more photosynthesis and grow more. 

Published in News
Last modified on Friday, 02 September 2022 16:46

Big South Fork seeking information on vehicles dumped in Blue Hole

IMG 2389

The National Park Service and officials with Big South Fork National River and Recreation Area are still looking for those responsible for dumping derelict vehicles in a remote part of the park known as Blue Hole.

Park staff found two vehicles and a boat illegally discarded in a section of the park closed to traffic. The junk was discovered Aug. 26 and staff and rangers had to pulled from other projects to clean up the mess.

Park staff recovered an abandoned vehicle, UTV, and boat from the Blue Hole section of the park that appeared to have been dumped in separate incidents.

“The resulting cleanup pulled staff away from planned trail work and public safety duties. Additionally, illegally dumping trash and other items create a negative visitor experience for those hoping to enjoy the serene natural beauty of Big South Fork NRRA,” said Superintendent Niki Stephanie Nicholas in a press release.

“Visitors are reminded that abandoning property in the park is prohibited by federal law.”

Anyone with information concerning these incidents is encouraged to contact the NPS at 423-223-4489 or leave a confidential message on the Resource Protection Tip Line at 423-569-7301.

The 24-hour tip line allows callers to remain anonymous.

Thursday, 21 October 2021 14:03

You are invited to Friday’s Great Smokies African American Experience Project Townhall meeting

The University of North Carolina Asheville will host a town hall at 2 p.m. Friday Oct. 22 for a robust discussion about the role of African-Americans in Southern Appalachian history, with a focus on the region that became Great Smoky Mountains National Park.
“The National Park Service’s Antoine Fletcher will be leading this event and has been compiling oral histories in order to document and share the untold stories of African Americans in and outside the Smoky Mountains. You are invited—and encouraged—to share information about this event, especially with elders, leaders, story-tellers, activists, and the bon vivants in your local African American community. The African American Experience project is seeking their knowledge, and yours!” according to a UNC Asheville description of the event.
Fletcher has researched the role of early African-Americans in the Great Smoky Mountains dating to the 1540s.
“Research topics in this framework include slavery, the American Civil War, social dynamics, laws and policies, careers, recreation, and oral histories. These, as yet, untold stories will be compiled to educate park visitors understand the vital, but not well known, history of African Americans throughout Appalachia,” according to UNCA.
Part of Friday’s program is geared toward exchanging contacts among those who have relevant historical knowledge of Blacks in Appalachia or might wish to record oral histories related to themselves or family members.
The town hall is the last such community information session planned for this phase of the the National Park Service’s “African-American Experience Project.” All the information gathered will be distilled into programming for visitors to Great Smoky Mountains and other national parks.
It is sponsored by UNCA’s Africana Studies Program, Community Engagement Office and Department of History.
Published in Event Archive
Last modified on Thursday, 16 June 2022 18:19

2015 P00418Brian Fricke, group leader for Building Equipment Research, conducts testing in his refrigeration system research lab at Oak Ridge National Laboratory. Jason Richards/ORNL

ORNL pursues refrigerant efficiencies and alternatives as we warm the Earth to keep things cold

You can flick it off; it’s cool.

Finally there’s a window, literally, for the annual retirement of your air conditioner. But the freezer aisles at your favorite supermarket aren’t going anywhere.
 
As summer slowly slips into autumn and we aspire to warm ourselves through winter, let’s consider the cost, economically and environmentally, of keeping ourselves under blankets in August or loading up on frozen burritos on a broiling day inside the deliciously cool air of a grocery store freezer aisle.
 
Let’s cast a cold eye toward Oak Ridge National Laboratory, where engineers are developing improved storage and transmission techniques to limit the harrowing climate-change effects of coolants and refrigerants, even as new pollution restrictions come into effect.
 
Coolants have played a role in environmental change and global warming since the very advent of the crudest cooling devices
 
Refrigerants have even driven human-settlement patterns and development of areas with harsh, hot climates such as the American South and Southwest. They’ve been rough on the Earth’s atmosphere and played an oversized role in climate change.
 
It’s kind of complicated:
 
Chlorofluorocarbons (CFC) used in 20th-century cooling and refrigeration systems thinned the ozone layer.

Then the hydrofluorocarbons (HFC) that replaced them turned out to be greenhouse gases that in some cases were 4,000 times more potent than carbon dioxide, itself a powerful driver of climate change.
 
The recent federal climate change directive requires an 85-percent phaseout of HFCs over the next 15 years.

So what will replace those coolants as heat waves associated with climate change only increase, in the near-term at least, the use of refrigerators and air conditioners across the world?

Scientists and engineers at ORNL are working on the next generation of coolants — and the efficiency and safety of their delivery systems — as HFCs are phased out.
Published in News
Last modified on Friday, 02 September 2022 16:48

Anti-nuke nun jailed after Y-12 protest dies at 91

News Sentinel: Nun who served time after Oak Ridge weapons protest dies in Pennsylvania

Sister Megan Rice, who along with two others were prosecuted by the federal government after breaking into the Y-12 nuclear weapons complex in Oak Ridge, died of congestive heart failure Oct. 10 in Rosemont, Pennsylvania.

Rice, a member of the order of the Society of the Holy Child Jesus, penetrated the secure perimeter of Y-12 in July 2012 along with two other Catholic activists for prayers and protests outside a bunker containing uranium, according to the Associated Press via the News Sentinel. The incident prompted numerous inquiries about the security of Y-12 and put the inherent danger of nuclear armament in the media spotlight.

The trio was charged with felony sabotage but served only two years of their federal prison terms.

“While testifying during her jury trial, Rice defended her decision to break into the Oak Ridge uranium facility as an attempt to stop “manufacturing that...can only cause death,” according to a trial transcript.'

“I had to do it,” she said of her decision to break the law.

“My guilt is that I waited 70 years to be able to speak what I knew in my conscience.”

Published in Feedbag

Permafrost is a ticking methane bomb

Smithsonian: In Russia, even rocks emit greenhouse gases

The melting Siberian tundra north of the Arctic Circle released millions of tons of methane last year as regional temperatures rose to 11 degrees (°F) above average.

Methane has a shorter effect than carbon dioxide on global atmospheric change but is still 70 times more potent than CO2 in its overall global-warming potential. Its accelerated release on such a vast scale represents an immediate challenge to restricting overall global warming to less than 3 degrees (°F) by the end of the century, which scientists agree is necessary to prevent dramatic climate change. Methane’s potent global warming potential is why many conservationists oppose the use of natural gas as an energy source.

But in Siberia, even the rocks are emitting methane. Scientists were surprised to find that limestone exposed by disappearing permafrost itself generated high levels of methane. Tundra fires have also accelerated the release of methane and other gases, and have come at great cost to the Russian government and the rural inhabitants of the vast region.

That means economical and practical means must be developed elsewhere, at least, for methane management.

But according to the United Nations Economic Council for Europe:

“Despite methane’s short residence time, the fact that it has a much higher warming potential than CO2 and that its atmospheric volumes are continuously replenished make effective methane management a potentially important element in countries’ climate change mitigation strategies. As of today, however, there is neither a common technological approach to monitoring and recording methane emissions, nor a standard method for reporting them.“

Published in Feedbag

DSCF8232 1 2048x1365 Tree trunks in the Bridgestone Firestone Centennial Wilderness Area in Sparta marked for clearcutting, despite local opposition.  John Partipilo/Courtesy Tennessee Lookout

Hundreds of citizens publicly reject TWRA Middle Tennessee deforestation plans

This story was originally published by the nonprofit Tennessee Lookout and is shared (with much appreciation) with Hellbender Press via Creative Commons License. 

Officials with the Tennessee Wildlife Resources Agency faced considerable pushback Monday night (Oct. 4) at a public meeting in Sparta over plans to raze old growth forest in a popular hunting and recreation area located about halfway between Nashville and Knoxville.

A standing room-only crowd of more than 200 people filled the town’s small civic center to hear directly from state officials about what had been — until now — an unpublicized internal agency plan to clear forest on public lands in the Bridgestone Firestone Centennial Wilderness Area to create grassland habitat for northern bobwhite quail, a game bird whose populations have plummeted in Tennessee.

Last modified on Tuesday, 25 October 2022 20:46

ORNL’s comprehensive mapping of built environments aids disaster response

Compass: ORNL mapping effort will aid rescue, risk assessment

Oak Ridge National Laboratory scientists spent five years mapping virtually every structure in the U.S. and the data is bearing early fruit as it is used for response to disasters such as hurricanes and severe floods. 

Mark Tuttle and Melanie Lavardiere, the team leaders of the project, have mapped “virtually every single structure in the United States and its territories,” Compass reports. 

The information is used by disaster responders from the FEMA level and down. During a hurricane, for example, authorities can focus response efforts on the most vulnerable areas using the building-mapping database. 

The database can also be used by insurers to charge rates more according to risk, and for structures covered under the National Flood Insurance Program, as is already happening.

But the data is most valuable for saving lives and determining the most likely location those lives will have to be saved. 

“After disaster strikes, the data can give a rapid indication of the scope of the damage and point responders in the right direction to assist in the recovery. Using the powerful computers available at ORNL, the team can process data quickly — producing in a matter of hours work that used to take months — and get it into FEMA’s hands for analysis,” Compass reports.

Published in Feedbag

Bridgestone Main 2048x1365Mike O’Neal, a longtime hunter, surveys an expanse of the Bridgestone Firestone Centennial Wilderness Area in Middle Tennessee where clearcutting of public hardwood forest is planned to create quail habitat. John Partipilo/Courtesy of Tennessee Lookout

The plan to clear forest for quail habitat is raising the ire of hunters and hikers, as well as a bipartisan group of state lawmakers

This story was originally published by the nonprofit Tennessee Lookout and is shared (with much appreciation) via Creative Commons License. 

It’s a pretty bird, easily recognizable by dark stripes on rust colored feathers and a distinct two-syllable chirp that announces its name: “bob” (the high note) then “white” at a lower pitch — also known as the northern bobwhite, a species of quail.

The otherwise unassuming bird is now at the center of a fight over public lands in White County, Tennessee, pitting the Tennessee Wildlife Resources Agency against an unlikely coalition of hikers, hunters, cavers, local business leaders and state lawmakers on both sides of the political aisle.

Last modified on Wednesday, 01 March 2023 11:06

foothills map

Plans for new parkway segment were hatched long ago; project would also include improvements to Wears Valley park entrance

Just a few years after the “Missing Link” of the Foothills Parkway was finally finished following decades-long delays, the National Park Service now has its sights set on constructing a new 10-mile section of parkway on the Tennessee side of Great Smoky Mountains National Park that would extend from Wears Valley to the heavily traveled Gatlinburg Spur.

The leg of the roadway has long been included in a plan for full completion of the parkway. About 30 miles have been completed from Tallassee, Tennessee to Wears Valley. This section would extend from the current parkway terminus in Wears Valley to the Gatlinburg Spur near Pigeon Forge.

Park officials said in a press release announcing the opening of the project’s public comment period that the unfinished section is the only stretch of incomplete, congressionally approved roadway in the U.S. 

Last modified on Tuesday, 21 February 2023 22:25

res1.jpgAquatic ecologist Natalie Griffiths studies nutrients and contaminants in the Weber Branch watershed, which is in the Oak Ridge Environmental Research Park. Courtesy Carlos Jones/ORNL

ORNL research lands are an international ecological benchmark and diverse wonderland of trees, plants, mammals, reptiles and amphibians

Abby Bower is a science writer for Oak Ridge National Laboratory.

The Department of Energy’s Oak Ridge National Laboratory (ORNL) is a hub for world-class science. The nearly 33,000-acre space surrounding the lab is less known, but also unique. The Oak Ridge Reservation (ORR) is a key hotspot for biodiversity in the Southeast and is home to more than 1,500 species of plants and animals.

At the intersection of Anderson and Roane counties is an important subset of the reservation — the Oak Ridge National Environmental Research Park, or NERP — a 20,000-acre ORNL research facility that has been internationally recognized by UNESCO as an official biosphere reserve unit.

“The National Environmental Research Park is a living laboratory and a major resource for conducting ecological studies,” said Evin Carter, an ORNL wildlife ecologist and director of the Southern Appalachian Man and the Biosphere Program, or SAMAB. The NERP has been a core part of SAMAB, which has focused on sustainable economic development and conserving biodiversity in Southern Appalachia since 1989.

With ORNL researchers and scientists from government agencies and academia using the NERP for diverse experiments each year, the park lives up to its status as a living laboratory.

It also lives up to its reputation as a biodiversity hotspot. As one of seven DOE-established environmental research parks reflecting North America’s major ecoregions, it represents the Eastern Deciduous Forest. The NERP comprises parts of this ecoregion that have been identified repeatedly as priorities for global biodiversity conservation, Carter said.

This designation means more than ever as climate change alters ecosystems and biodiversity declines worldwide. According to a landmark international report, on Biodiversity and Ecosystem Services, around one million plant and animal species are currently threatened with extinction. 

Published in News, Earth, 15 Life on Land
Last modified on Thursday, 16 February 2023 23:05
Monday, 27 September 2021 11:45

Catch a beer and documentary on the importance of freshwater fish and their current swim into oblivion

Albright Grove Brewing Company will host a viewing Wednesday, Sept. 29 of “Hidden Rivers,” a documentary detailing the smaller, gilled denizens of Southern Appalachian creeks, rivers and streams and the threats they face.

The screening of “Hidden Rivers” by Freshwaters Illustrated is planned for 6 p.m. at Albright Grove Brewing, 2924 Sutherland Ave. in Knoxville.

“This film aims to show off the stunning freshwater biodiversity of the Southern Appalachian region, and to highlight conservation efforts, beauty, and vulnerability of these ecosystems,” according to Conservation Fisheries, a Knoxville-based nonprofit geared toward the preservation of native Appalachian fishes and their ecosystems.

Conservation Fisheries is in its 35th year of breeding, sharing and releasing broods of threatened fishes collected from points ranging from the Conasauga River to Little River and beyond.

Published in Event Archive
Last modified on Thursday, 16 June 2022 18:27

Another slice of the wild preserved in Cumberlands

Knox News: Nearly 12,000 acres added to Skinner Mountain preserve on the Cumberland Plateau

The Conservation Fund and state wildlife and forestry officials reached a deal to conserve and manage thousands of wild acres in Fentress County.

The expanse was previously held by an out-of-state speculative investment company likely originally tied to timber companies.

The Cumberland Plateau and escarpments have been increasingly recognized for their biodiversity along with the Smokies to the east beyond the Tennessee Valley. The Cumberlands are along a songbird and fowl migration route, and host a niche population of mature timber, mosses, lichens, fungi, mammals and amphibians. Elk were reintroduced a decade ago, and black bears have begun to range across the Cumberlands and their base.

The area is pocked with caves and sinkholes, some containing petroglyphs and other carvings from previous populations.

"On the Cumberland Plateau, the key to maintaining biodiversity is to retain as much natural forest (both managed and unmanaged) as possible," a forestry expert told the News Sentinel's Vincent Gabrielle.

The Foothills Land Conservancy has also helped protect thousands of acres along the plateau and its escarpments in recent years.

Published in Feedbag

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UPDATED: Opponents of Pellissippi Parkway Extension hammer bureaucrats, unelected economic development officials at public meeting

(This story has been updated with this link to the Tennessee Department of Transportation recording of the Sept. 21 public hearing on the proposed Pellissippi Parkway Extension project).

Raw emotions spilled over at a Tennessee Department of Transportation public meeting to collect citizen input on a nearly 5-mile, four-lane highway that would carve through creeks, forests, farms and homes in rural Blount County in the foothills of the Great Smoky Mountains.

The meeting was held Tuesday evening at Heritage High School, not far from where the proposed Pellissippi Parkway Extension (which would originate at the terminus of the current parkway near Rockford) would abruptly bisect East Lamar Alexander Parkway, just to the west of Walland Gap and the Little River Gorge.

As Hellbender Press has reported on the Pellissippi extension, many people aren’t happy with the proposition of spending at least $100 million on a 4.5-mile stretch of highway, and people are uncomfortable with both the use of eminent domain to force them from their homes or seize portions of their property and the unavoidable and long-lasting environmental and cultural impact such a project would have on the rural areas of Blount County. The projected cost of the project has vacillated by millions of dollars.

East Lamar Alexander Parkway (U.S. 321) terminates in Townsend; along the way are turnoffs to many valuable pieces of real estate and immensely successful high-end hospitality venues, such as Blackberry Farm. Hellbender Press reached out to Blackberry Farm through its Nashville-based public relations team about the nearby highway project and was simply told “we have no comment.”

People who did not attend last night’s meeting have the opportunity to voice their opinion on the TDOT website.
 
The comment period is open through Oct. 12.
 
Last modified on Thursday, 16 June 2022 23:41