This 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. 

Oak 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.

Toward 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. 

Hellbender 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. 

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