A bumble bee (Bombus sp.) collects pollen from purpletop vervain (Verbena bonariensis) in a pollinator plot on the Tennessee Aquarium plaza in Chattanooga.  Tennessee Aquarium

Aquarium celebrates Pollinator Week with activities and giveaways June 17-23

Doug Strickland is a writer for the Tennessee Aquarium.

CHATTANOOGA — Pollinators. They’re kind of a big deal.

From iconic monarch butterflies and humble honey bees to fast-flying hummingbirds and acrobatic ... lemurs?! ... the animals that help plants reproduce are collectively known as “pollinators.” Whether intentional or accidental, the actions of pollen-transporting species contribute tremendously to the health of their respective ecosystems and are responsible for a shocking amount of the food we eat.

The benefits of the human-pollinator relationship are a two-way street. According to the Pollinator Partnership, a nonprofit dedicated to raising awareness about the role pollinators play, pollinators are responsible for roughly one of every three bites of food we eat and propagate over 180,000 different plant species — including more than 1,200 food crops.

Vicky Wallace gets assistance crossing a creek in her off-road GRIT wheelchair during an adaptive camping outing along Cooper Road Trail in Great Smoky Mountains National Park.  Yvonne Rogers/Hellbender Press

Adapted to their environment, wheelchair users venture into Smokies backcountry

TOWNSEND — Four wheelchair users ventured this month to an Abrams Creek backcountry campsite in a first for the Smokies.

Borne by GRIT Freedom Chairs, the able trekkers arrived June 8 in a collaborative event featuring Great Smoky Mountains National Park, Knox County, Kampgrounds of America Foundation and Catalyst Sports. The intrepid group had headed up about a mile of the wide, gravel Cooper Road Trail over hills toward Campsite 1, past horses, along and through streams, finally reaching their campsite. The three-wheeled, arm-powered GRIT chairs are designed for off-road routes.

For much of the route the adaptive hikers used their arms to move their chairs, but other people accompanied them on foot, sometimes helping them up difficult hills or over streams. Those in the chairs enjoyed the mountain water that rushed over their feet.

Park Ranger Katie Corrigan talked about highlights of the natural world around them and led discussions on the concepts of wildness and wilderness. Just like many other backcountry campers, the group of adventurers ate s’mores and slept in tents at the campsite before heading back down Cooper Road to the trailhead the next day. 

Joro (pronounced “Joe-row”) spiders have made their way to the U.S. from Asia. They may appear intimidating, and can bite like most spiders, but are harmless when left alone.  Pexels via Virginia Tech

Newest invasive exotic spider is harmless, though it doesn’t belong here

Theresa “Tree” Dellinger is a diagnostician at the Insect Identification Lab in the Department of Entomology at Virginia Tech, where she identifies insects and other arthropods and provides management suggestions for insect-related problems. This article was provided by Virginia Tech.

BLACKSBURG — The large, brightly colored Joro spider has been sighted recently on social media in many more places than it has ever been seen in the United States, as exaggerated, misleading stories about the arachnid have gone viral. Yet they pose no threat, except perhaps to insects and to other spiders.

“Joro spiders will likely continue to spread in the U.S., but they aren’t the ‘flying venomous spider invasion’ that’s been sensationalized in the media,” said Virginia Tech entomologist Theresa Dellinger. Answering the questions below, she shared facts about this much maligned spider species.

Q: Where do Joro spiders come from?

“Joro spiders (Trichonephila clavata) are native to east Asia and can be found in Japan, Korea, China, Indochina and Nepal. First reported in northern Georgia in 2014, they are an invasive species of spider that likely entered the U.S. on materials imported from east Asia.” 

This is an excerpt from a 1966 article in Mining Congress Journal indicating mining interests were already aware of the potential for climate change due to carbon dioxide emissions.

Circuit Court ruling: Private emails on public servers don’t always equal public records

KNOXVILLE — A Knox County judge ruled in a lawsuit that spun off from the “Coal Knew, Too” scandal that emails sent or received by a University of Tennessee professor aren’t public records.

Circuit Court Judge William T. Ailor turned aside a bid made by Knoxville-based writer Kathleen Marquardt to review the emails of Chris Cherry, a professor with UT’s Department of Civil and Environmental Engineering, according to court records. 

Marquardt filed the Public Records lawsuit four years ago, but the case didn’t actually make it into a courtroom until a pair of hearings held earlier this year. 

According to Judge Ailor’s opinion, the bare fact that Cherry and freelance reporter Élan Young (who was also employed by UT at the time and currently writes for Hellbender Press) exchanged emails using their UT accounts “does not raise the emails themselves to the level of being public records.” 

The origins of the lawsuit date back to 2019, when Cherry rescued some old coal industry trade journals that a colleague was about to toss in a dumpster after cleaning out an office.

In one of the discarded issues of the Mining Congress Journal was an article from 1966 that contained a statement from the then-president of a coal mining organization explaining that fossil fuel use was causing an increase in atmospheric carbon dioxide that would cause vast changes in the Earth’s climate through global warming. 

A novel technology developed by ORNL keeps food and beverages refrigerated with an advanced evaporator, phase change materials, metal foam, direct-contact defrosting technology and a low global warming refrigerant.  Oak Ridge National Laboratory 

OAK RIDGE — A technology developed by Oak Ridge National Laboratory keeps food refrigerated with phase-change materials, or PCMs, while reducing carbon emissions by 30 percent.

More than 100 million household refrigerators in operation across the United States consume up to 2 kilowatts of electricity daily. These refrigerators contribute to energy consumption and carbon emissions by using compressors that cycle on and off day and night, pumping refrigerants across evaporator coils to maintain low temperatures for fresh and frozen compartments. 

(Hellbender Press previously reported on the development of new coolants and systems at ORNL).

ORNL’s innovation uses advanced evaporators with PCMs installed in each compartment for cold energy storage. PCMs are useful for heating and cooling because they store and release energy when changing from solids to liquids or vice versa. Researchers applied porous metals, direct-contact defrosting technology and a refrigerant with low-global-warming potential to enhance performance and minimize environmental impact.

“PCMs are integrated with evaporator coils to keep temperature constant, requiring one operating cycle and allowing refrigerators to operate almost 100% at nighttime, when energy use is lower,” ORNL’s Zhiming Gao said. “This reduces electricity demand, saves costs and maintains efficiency.”

— Oak Ridge National Laboratory