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Thursday, 18 April 2024 06:35

Happy Earth Day to you

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2017 Eclipse GIF dscovr epic 21 aug 2017 solar eclipse shadowThis image of Earth captures the 2017 eclipse shadow.  NASA

Get dirty. Get wet. Have fun. Love your mother.

Celebrate our planet’s beauty and bounty at one of many Earth Day events in the region this weekend and beyond. You can pick up trash, kayak a river and even get sustainable fashion tips and tricks. 

The official observation of Earth Day 2024 is Monday, April 22, but ways to give back and respect the Earth abound for days before and after. Here’s a sampling of observations and activities. And remember: Every day should be Earth Day.

Knoxville

— Little River Watershed Association plans its annual cleanup and paddle for 12-4 p.m. Saturday, April 20. Participants will put in at Peery’s Mill near Townsend and remove trash from the river for about three hours before taking out at Sevierville Bridge. Albright Grove Brewery will offer beer after the cleanup. A limited number of kayaks are available for use, and a shuttle is available. Get more information and sign up here.

— Keep Knoxville Beautiful will hold the South Knoxville Community Cleanup from 9 a.m. until noon Saturday, April 20 starting at Mary Vestal Park, 522 Maryville Pike, Knoxville. The group is removing litter from South Knoxville streams, roads and parks. All reserved spots are full, but Amanda Seale, director of programs for Keep Knoxville Beautiful said her group still welcomes help from anyone who shows up.

— The third annual Fleurish: A Sustainable Fashion Event (and Fundraiser) at Ijams Nature Center will bring eco-friendly and sustainable Punk vs. Funk designs to the runway Sunday, April 21. Tickets are $30 and are available at Ijams.org/fleurish. All proceeds support Ijams Nature Center. The cocktail hour from 6 until 7 p.m. will feature photo ops on the “green” carpet, education stations and information about conservation efforts in the fashion realm, as well as a cash bar featuring punk and funk signature cocktails, and food from Coffee & Chocolate, Cafe 4, and The Kennedy. The fashion show will feature clothing with sustainable, reused and recycled materials from 25 designers. Following the fashion show, attendees will be able to meet the artists, designers, and models on the nature center’s hillside. Brent Hyder and Duck Experience will provide live music. Ijams Visitor Services Director Sarah Brobst said there may be some surprise elements as well.

“Fleurish shows how the average consumer can make changes to their day-to-day lives while never losing sight of the beauty of nature and the human experience,” she said. She encouraged the audience to come dressed in their favorite punk or funk fashions.

— The University of Tennessee will host an Earth Day Festival from 11 until 2 p.m. April 22 at the Student Union Plaza.

“Come meet campus and community organizations, enter some giveaways, participate in sustainable activities, and more!,” according to organizers. Other Earth Week events will continue on and near the campus that week. A full list of them is online

Last modified on Tuesday, 23 April 2024 00:14

ORNL chemists invent a more efficient way to extract lithium

ornllithiumOak Ridge National Laboratory

OAK RIDGE  Chemists at the Department of Energy’s Oak Ridge National Laboratory have invented a more efficient way to extract lithium from waste liquids leached from mining sites, oil fields and used batteries. They demonstrated that a common mineral can adsorb at least five times more lithium than can be collected using previously developed adsorbent materials. 

“It’s a low-cost, high-lithium-uptake process,” said Parans Paranthaman, an ORNL Corporate Fellow and National Academy of Inventors Fellow with 58 issued patents. He led the proof-of-concept experiment with Jayanthi Kumar, an ORNL materials chemist with expertise in the design, synthesis and characterization of layered materials.

“The key advantage is that it works in a wider pH range of 5 to 11 compared to other direct lithium extraction methods,” Paranthaman said. The acid-free extraction process takes place at 140 degrees Celsius, compared to traditional methods that roast mined minerals at 250 degrees Celsius with acid or 800 to 1,000 degrees Celsius without acid.

Lithium is a lightweight metal commonly used in energy-dense and rechargeable batteries. Electric vehicles, which are needed to achieve net-zero emissions by 2050, rely on lithium-ion batteries. Industrially, lithium is extracted from brines, rocks and clays. The ORNL innovation may help meet rising demand for lithium by making domestic sources commercially viable.

Bales Periodiacl Cicada adultToward the end of their lives, periodical cicadas emerge from the ground, molt into their adult wardrobe to find each other and reproduce before they die. Periodical cicada nymphs spend their entire 13-year or 17-year lives underground seeking nourishment in roots and slowing growing before time to emerge.  Stephen Lyn Bales/Hellbender Press

Billions upon billions of cicadas will emerge this spring and summer during a rare convergence of broods

Three years ago, Southern Appalachia experienced the emergence of 17-year cicadas’ Brood X. And already, we’re up for another wave of cicadas!

KNOXVILLE — Periodical cicadas are rare. Of the roughly 3,400 cicada species on the planet, only seven of those live underground as nymphs for a staggeringly odd long time. 

It gets odder. The seven species are only found in eastern North America, living in 15 separate populations known as “broods.” Some of those broods remain in their subterranean tunnels for 13 years, and some for 17 years. 

When their life cycle is up, the strange little insects emerge by the millions to molt into adults and with their new golden wings fly up into the trees where the females and males find each other. They mate, she lays eggs, and then they drop dead.

When the early American colonists moved to their new homeland in the 1600s they were horrified by these oddly spaced natural phenomena. Pilgrims at Plymouth reported them in 1634. With only a sprinkling of education to serve them, they naturally turned to their only field of reference and the stories from the Bible. The New World newbies deemed them to be swarms of locusts from the list of Biblical Plagues beset on Egypt along with water turning to blood, lice, boils, flies, hailstones and the killing of first borns. And why not?  To them a bug was a bug, with some more frightening than others. 

Last modified on Saturday, 20 April 2024 00:28

18698429 1589377187741595 2898476012201087368 nHellbender Press editor and publisher Thomas Fraser takes a break during a kayak run on the Pigeon River. A new study bolsters the idea that one way to turn people on to the importance of nature is to get them outside.  Jeremy Fraser/Hellbender Press

New research backs up conventional wisdom that getting people outdoors inspires them to conserve nature.

This story was originally published by The Revelator.

The natural world faces many threats, but to many environmentalists, none are so baffling and heartbreaking as public apathy toward those threats.

How do we get more people to care about the natural world so they’re moved to stand up and defend it? The answer is complex, of course, because humans are complex. But part of it can be found in a simple truth: Some people don’t care much about the natural world because they haven’t experienced nature directly.

For years experts have pointed to a potential solution: Getting people to spend more time in nature, they say, can help make them care more about threats to our environment and adopt more pro-environment behaviors. 

Last modified on Thursday, 25 April 2024 23:56

TWRA bans booze in management areas to combat trail-riding crashes

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NASHVILLE — Alcohol possession and consumption will be prohibited on Tennessee Wildlife Resources Agency (TWRA) Wildlife Management Areas statewide, effective April 15 with the exception of designated areas. Alcohol is only permitted at designated TWRA campgrounds and on public waters bordering or within a WMA. Drunken-disorderly conduct is also prohibited.

This rule applies to all user groups, including hunters, hikers, off-highway (OHV) drivers and passengers, and other WMA users. Signs will be posted on the WMA noting that alcohol is prohibited. TWRA wildlife officers will be issuing citations for alcohol possession and use that is not in compliance with the regulations. Tennessee State Driving Under the Influence laws also apply on local roads and managed trails when operating OHVs.

The rule change is being implemented due to high rates of intoxicated trail riding on WMAs and frequent accidents where alcohol was a contributing factor. The TWRA is committed to public safety and is focused on keeping public lands family friendly and safe for all Tennesseans.

— TWRA

Published in Feedbag
Saturday, 13 April 2024 06:34

Momentum builds slowly for TVA’s post-coal plans

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Spherical tokamak plasma turbulenceSupercomputer simulation of plasma turbulence in a spherical tokamak, which is an experimental machine designed to harness the energy of fusion.  Image courtesy of Walter Guttenfelder, Princeton Plasma Physics Laboratory and Filippo Scotti, Lawrence Livermore National Laboratory via DOE.

Fusion research, natural gas, solar power and battery improvements at heart of TVA’s plans to wean itself off coal

OAK RIDGE — The Tennessee Valley Authority is phasing out coal and announcing developments tied to other energy sources at two plants that sit on either side of Oak Ridge.

One of the options includes a fusion test site. Scientists have long pursued fusion energy, though the technology remains in infancy and has yet to generate electricity anywhere.

The TVA coal plant on Edgemoor Road in the Claxton community in Anderson County closed Dec. 1 last year. TVA remains uncommitted to any plans for most of the land around the plant. A company recently announced, however, that it plans tests connected to fusion power in a small part of one of Bull Run’s old buildings by 2028. It will be an experiment and not generate power directly.

Meanwhile, TVA plans to retire Kingston Fossil Plant on Swan Pond Road in Harriman by the end of 2027. Its nine coal-fired units power about 818,000 homes. To replace the power generated at the plant, TVA plans to build a new complex at the Kingston plant’s site, combining natural gas, solar power and battery storage.

TVA plans to retire all its coal plants by the 2030s.

Last modified on Thursday, 18 April 2024 23:16
Thursday, 11 April 2024 07:33

Ginseng: The root that helped shape a region

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Ginseng Diggers cover

An interview about ginseng with expert and author Luke Manget

This story was originally published by Appalachian Voices.

An author and historian who traveled across Appalachia examining business records of pharmaceutical companies, mountain entrepreneurs and country stores, Luke Manget’s book, Ginseng Diggers: A History of Root and Herb Gathering in Appalachia, unearths the complex and impactful history of ginseng and root digging. Manget delves into the relationship between a valuable root and a region’s cultural identity, transition to capitalism, and land use. The book was published by the University Press of Kentucky in March 2022.

The Appalachian Voice: Can you tell me a little bit about your background and what drew you to the history of ginseng?

Manget: My family on my mother’s side is from Eastern Kentucky and I grew up visiting family a lot. I grew up hearing some of these stories and my grandmother talked about digging mayapple behind the house. I was always kind of fascinated with it. When I was in graduate school for history and looking for topics to write about, I started looking into how the Appalachian region recovered from the Civil War in the late 19th century period and kept seeing references to root digging and ginseng. I immediately became fascinated by this idea and wanted to know more about it. It was a family connection, but it was also part of my desire to figure out subsistence practices in Appalachia and how they were altered and how they were changed by the Civil War. 

Published in News, Earth
Last modified on Sunday, 14 April 2024 23:56

Updated: Missing man found near Tremont in Smokies

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GATLINBURG — A missing man who was the subject of a search in Great Smoky Mountains National Park was found on Wednesday.

Jacob Riggs was located in the vicinity of Tremont by a park visitor who recognized that he was in need of care. The visitor brought Riggs to the Incident Command Post near the Townsend Wye. Riggs had minor injuries and exposure to weather. He was evaluated onsite and taken to a local hospital. 

The previous story is below:

Park rangers are searching for a 35-year-old man near the Townsend Wye, Tremont and Cades Cove areas of the park. Jacob Riggs was last seen in Maynardville, Tenn. on April 7. His vehicle was found in the park on April 8. 

Riggs is a white male, with black hair and a dark beard, and brown eyes. He is 6 feet 2 inches tall and weighs 185 pounds.  

Several organizations are helping the National Park Service in the search and more resources are en route.  
Anyone who saw Riggs or has information about his whereabouts is asked to please contact the national park.
— CALL the NPS Tip Line 888-653-0009
— ONLINE go.nps.gov/SubmitATip 
— EMAIL This email address is being protected from spambots. You need JavaScript enabled to view it.
— EMERGENCY dial 9-1-1 

Va Tech demographic studyA U.S. map shows counties where residents could (blue) or could not (pink) receive local-specific information about environmental justice issues.  Photo courtesy of Junghwan Kim via Virginia Tech.

Key findings indicate limitations of AI, suggest improvements

David Fleming is a communications specialist at Virginia Tech.

BLACKSBURG — Virginia Tech researchers have discovered limitations in ChatGPT’s capacity to provide location-specific information about environmental justice issues. Their findings, published in the journal Telematics and Informatics, suggest the potential for geographic biases existing in current generative artificial intelligence (AI) models.

ChatGPT is a large-language model developed by OpenAI Inc., an artificial intelligence research organization. ChatGPT is designed to understand questions and generate text responses based on requests from users. The technology has a wide range of applications from content creation and information gathering to data analysis and language translation.

A county-by-county overview

“As a geographer and geospatial data scientist, generative AI is a tool with powerful potential,” said Assistant Professor Junghwan Kim of the College of Natural Resources and Environment. “At the same time, we need to investigate the limitations of the technology to ensure that future developers recognize the possibilities of biases. That was the driving motivation of this research.”

Utilizing a list of the 3,108 counties in the contiguous United States, the research group asked the ChatGPT interface to answer a prompt asking about the environmental justice issues in each county. The researchers selected environmental justice as a topic to expand the range of questions typically used to test the performance of generative AI tools. Asking questions by county allowed the researchers to measure ChatGPT responses against sociodemographic considerations such as population density and median household income. 

Last modified on Sunday, 14 April 2024 23:09

City Nature Challenge logo 

KNOXVILLE — People across 13 counties in East Tennessee are urged to record animals, plants and fungi they observe for four days in late April.

City Nature Challenge 2024 is international, but the Knoxville-area challenge includes anyone in Anderson, Blount, Campbell, Claiborne, Grainger, Jefferson, Knox, Loudon, Morgan, Roane, Scott, Sevier and Union counties. It will run April 26 through April 29 via the iNaturalist app, which is available on Google play or the App Store. While the focus is largely centered on urban areas, participants don’t have to live within a city or town to record their observations.

Participants can upload photos from a digital camera to the iNaturalist website even if they lack a smartphone. Zoo Knoxville, Tennessee Butterfly Monitoring Challenge, the city of Knoxville, Ijams Nature Center, Sierra Club, South Doyle Middle School and Discover Life in America are partnering to support the project. No experience is needed to participate. Results will be announced on May 6.

Last modified on Wednesday, 01 May 2024 11:04
Friday, 05 April 2024 07:10

View the partial eclipse in the Park

Eclipse KoutchmyThe central, dark image shows the total eclipse on March 9, 2016 from Earth, with the central pupil created by the sun covered by a dark moon as seen from the NASA and ESA Solar and Heliospheric Observatory. Faint structures in the sun’s corona extend outward from this disk with the corona imaged in white light, easily visible from the ground only during an eclipse.  NASA 

GATLINBURG  A total solar eclipse will be visible across a swath of the United States on April 8, stretching from Texas to Maine. Great Smoky Mountains National Park lies outside the path of totality but will experience an 86 to 87 percent obstruction of the sun during the event.

In the Smokies, viewers will experience a partial eclipse, when the moon only partially blocks the sun. In the national park, the moon will begin its intersection of the sun’s orbit at 1:49 p.m., the obstruction will reach its maximum extent at 3:08 p.m., and the event will conclude at 4:23 p.m. 

A total eclipse is lineup of the sun, the moon, and Earth. The moon will be directly between the sun and Earth, casting a shadow on Earth. A total eclipse occurs when the moon covers the entirety of the sun except for the corona, or sun’s atmosphere.

Viewing a solar eclipse without proper eye protection is dangerous and can result in long-term vision impairment or blindness. Regular sunglasses — no matter how dark — are not safe for viewing the eclipse. To ensure safe viewing, park staff will make available one free pair of glasses per family/group at the viewing locations listed below while supplies last. If visitors wish to have enough glasses for everyone in their group to view the eclipse at the same time, they will need to bring eclipse glasses along or purchase them. The park’s retail partner, Smokies Life, will have the glasses available for sale ($1.50 each) at park store locations.

Park staff and volunteers will be available to provide eclipse information and safe, facilitated viewing at the following locations from 1 p.m. to 4:30 p.m.:

  • Newfound Gap parking lot

  • Various locations around Cades Cove Loop Road, including near the John Oliver Cabin and at the Cades Cove Overlook

  • Outside the Oconaluftee Visitor Center
A Junior Ranger Eclipse Explorer activity book will be available for free at the above locations for anyone who wants to earn a Junior Ranger Eclipse Explorer badge.
The next total eclipse visible from the United States will occur in 2044.
— Great Smoky Mountains National Park
Last modified on Saturday, 13 April 2024 01:00

Gentoo Penguin Carla selects a rock for her nest during "Rock Day," which begins penguin nesting season at the Tennessee Aquarium.Gentoo penguin Carla selects a rock for her nest during “Rock Day,” which begins penguin nesting season at the Tennessee Aquarium.  Photo courtesy Tennessee Aquarium

Penguins swing into spring nesting season — with lots of rocks

Doug Strickland is a communications specialist at the Tennessee Aquarium.

CHATTANOOGA — While other birds’ hearts might flutter at the thought of building nests with supple twigs, fluffy fibers, mud or even their own saliva (yes, really), nothing gets the Tennessee Aquarium’s penguins quite as excited as rocks.

Big rocks. Little rocks. Smooth rocks. Rough rocks. Whatever type of rock a bird prefers, their arrival by the bucketful in the Penguins’ Rock gallery signals the official start of penguin nesting season and a flurry of activity that may — flippers crossed — lead to one or more tiny, fluffy chicks this summer. The birds typically begin nesting around April 1.

“These guys have been ready for a couple of weeks as the lights are gradually changing, and the days are getting a little bit longer, so they’ve known that this was coming,” says Assistant Curator Loribeth Lee.

Those steadily lengthening days, courtesy of the Aquarium’s team of systems operators, herald the arrival of spring and trigger biological signals telling the penguins that love is in the air. Nevertheless, it isn’t until the rocks are dumped into inviting piles& that the Gentoo and Macaroni Penguins can get to work building the nests that will help protect their young.

Published in News, Creature Features
Last modified on Wednesday, 17 April 2024 08:14
Wednesday, 03 April 2024 08:19

Be comfortably adventurous with the 2024 Eco-Adventure

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The 4th annual Great Smokies Eco-Adventure, based at Camp Atagahi, promises you a unique, memorable experience

The event is hosted by Discover Life in America (DLiA) and A Walk in the Woods Guide Service. This exciting fundraising event features “glamping” (glamorous camping), gourmet food and drink, as well as guided nature hikes in the Smokies — including an excursion on the Appalachian Trail in Great Smoky Mountains National Park, during peak wildflower season.

The Eco-Adventure will be held Sunday, April 21-23 near Gatlinburg, and all proceeds support DLiA’s mission to conduct biodiversity research in Great Smoky Mountains National Park. Tickets are limited.

Discover Life in America’s mission is connecting communities and scientists in discovering, understanding and conserving the natural world. DLiA’s flagship project, the ATBI (All Taxa Biodiversity Inventory), is a joint effort with the National Park Service to identify and understand every species within Great Smoky Mountains National Park. To date, DLiA has helped add 12,083 species to the inventory of life in the park, including 1,079 that are new to science. Learn more at dlia.org.

Last modified on Tuesday, 23 April 2024 00:35

Knoxville’s new alternative transportation leader will start with traffic calming

Cody GentryCody Gentry

KNOXVILLE — Transportation Engineering Specialist Cody Gentry is the city’s first Vision Zero coordinator.

As the city’s first Vision Zero coordinator, Gentry will oversee efforts by multiple city departments and community groups, including Bike Walk Knoxville, to improve roadway safety and meet the Vision Zero goal, which City Council unanimously endorsed in 2021.

Gentry has worked in the city’s engineering department for 17 years, most recently as a key member of the Neighborhood Transportation Safety Program. The neighborhood-driven program seeks solutions to vehicle speed and traffic safety concerns on residential streets. 

“I’m eager for Cody to lend his significant experience to our Vision Zero efforts and find multi-modal solutions to road safety across Knoxville,” said Mayor Indya Kincannon. “We must work together across multiple city departments and community groups in order to reach our goal of ending deadly crashes by 2040. Cody is the person to bring those components together.”

From Cataloochee to Cherohala: Officials pondering ways to spread the love

GATLINBURG With ever more people crowding Great Smoky Mountains National Park, should the park and others encourage them to go somewhere else?

Enter “de-marketing:” A presentation at the 2024 Great Smoky Mountains Science Colloquium laid out a study examining ways to draw people away from Great Smoky Mountains National Park and toward the Cherohala Skyway. The colloquium, sponsored by Discover Life in America, can be found on YouTube along with other presentations from the day, ranging from elk to ozone’s effects on plants. Justin M. Beall gave the presentation on crowds and de-marketing and said he conducted the research while at North Carolina State University. His was the only social science presentation of the day.

“That doesn’t mean we want to stop people from getting outdoors,” Beall said. “It just involves trying to convince visitors, maybe on their next trip, to explore a less visited destination in order to reduce crowding in certain spots.” He called it “diversion de-marketing” and said it was better than other de-marketing strategies. Two such other de-marketing strategies — forcing people to make reservations or raising the prices — he said, might price out people who earn less money or could confuse and frustrate visitors.

Beall said his study involved giving brochures to people at Alum Cave and Laurel Falls trailheads and Clingmans Dome. One focused on nature opportunities at Cherohala Skyway; one focused on social media photo and video posting opportunities there; and a third was more “of a boring control” in its approach to promoting the Skyway. His team distributed 500 surveys, evenly divided by both site and type of brochure. He said he expected to be there for 10 days but the group finished it in a little more than three days.

That “is amazing from a social sciences perspective, but I think again it shows you during these peak visitation times, such as peak leaf season, how many visitors can actually be in the park at one time,” he said.

Last modified on Wednesday, 03 April 2024 01:17