Trichloroethylene is among the chemicals deemed a serious public health risk by way of the Environmental Protection Agency’s IRIS database. Legislation in Congress could bar the use of IRIS and its associated scientific methods from being used to calculate the environmental and human health risks of chemicals such as TCE, a proven carcinogen.  ChemLibrarian/Wikipedia Commons

Two bills in Congress would prohibit the Environmental Protection Agency from using hundreds of chemical assessments completed by its IRIS program in environmental regulations or enforcement.

This story was originally published by ProPublica.

WASHINGTON, D.C. — For decades, Republican lawmakers and industry lobbyists have tried to chip away at the small program in the Environmental Protection Agency that measures the threat of toxic chemicals.

Most people don’t know IRIS, as the program is called, but it is the scientific engine of the agency that protects human health and the environment. Its scientists assess the toxicity of chemicals, estimating the amount of each that triggers cancer and other health effects. And these values serve as the independent, nonpartisan basis for the rules, regulations and permits that limit our exposure to toxic chemicals.

Now IRIS faces the gravest threat to its existence since it was created under President Ronald Reagan four decades ago.

Legislation introduced in Congress would prohibit the EPA from using any of IRIS’ hundreds of chemical assessments in environmental rules, regulations, enforcement actions and permits that limit the amount of pollution allowed into air and water. The EPA would also be forbidden from using them to map the health risks from toxic chemicals. The bills, filed in both the U.S. Senate and House of Representatives earlier this year, are championed by companies that make and use chemicals, along with industry groups that have long opposed environmental rules. If it becomes law, the “No IRIS Act,” as it’s called, would essentially bar the agency from carrying out its mission, experts told ProPublica.

“They’re trying to undermine the foundations for doing any kind of regulation,” said William Boyd, a professor at UCLA School of Law who specializes in environmental law. Boyd noted that IRIS reports on chemicals’ toxicity are the first step in the long process of creating legal protections from toxic pollutants in air and water.

“If you get rid of step one, you’re totally in the dark,” he said.

If the act passes, companies could even use the law to fight the enforcement of environmental rules that have long been on the books or permits that limit their toxic emissions, environmental lawyers said.

A postman butterfly feeds on a bloom in the Tennessee Aquarium’s Butterfly Garden in Chattanooga. At any one time, the garden may host 1,000 to 1,500 butterflies representing more than 200 species.  Courtesy Tennessee Aquarium

A third of species declined by half in U.S.; relatively simple steps can improve outlook

This story was originally published by The Conversation.

If the joy of seeing butterflies seems increasingly rare these days, it isn’t your imagination.

From 2000 to 2020, the number of butterflies fell by 22% across the continental United States. That’s 1 in 5 butterflies lost. The findings are from an analysis just published in the journal Science by the U.S. Geological Survey’s Powell Center Status of Butterflies of the United States Working Group, which I am involved in.

We found declines in just about every region of the continental U.S. and across almost all butterfly species.

Overall, nearly one-third of the 342 butterfly species we were able to study declined by more than half. Twenty-two species fell by more than 90 percent. Only nine actually increased in numbers.

Some species’ numbers are dropping faster than others. The West Coast lady, a fairly widespread species across the western U.S., dropped by 80 percent in 20 years. Given everything we know about its biology, it should be doing fine — it has a wide range and feeds on a variety of plants. Yet its numbers are absolutely tanking across its range. 

Debris hangs from trees on the banks of the French Broad River near the main building of Hot Springs Resort and Spa. The river gauge at Hot Springs was offline during the main rain events immediately preceding the Sept. 27, 2024 floods but registered a peak just under 21 feet. The record stage is 22 feet, but that record will likely fall after review of provisional weather-gauge data by the National Weather Service. Much of the debris generated by flooding on the French Broad River in Western North Carolina made its way downstream toward Douglas Lake in Tennessee.  Thomas Fraser/Hellbender Press

Volunteers needed for 36^th Ijams River Rescue set for March 8

KNOXVILLE  — The thousand-year rains brought by Hurricane Helene flushed incalculable amounts of garbage from multiple major watersheds in East Tennessee and Western North Carolina in late September 2024. The Tennessee Wildlife Resources Agency and Tennessee Valley Authority, for instance, resorted to booms and cranes to corral and collect thousands of tons of garbage along more than 200 miles of Douglas Lake shoreline. The cleanup continues.

High water downstream also carried debris and detritus of every description into Knox County via the French Broad River, which then deposited it along urban and regional lake and stream banks.

Removing this pulse of pollution and flotsam from the Tennessee River, already known as a conduit of microplastics, could take years or generations. You can start the process March 8 along multiple TVA lakes in the area. We all live downstream.

Here’s the release from Ijams Nature Center, one of the main sponsors of the annual event:

Volunteer and make your community a cleaner, healthier place to live, work and play during the 36^th annual Ijams River Rescue from 10 a.m. to 1 p.m. Saturday, March 8. A severe weather date is set for Saturday, March 15.

Ijams Nature Center’s annual cleanup event brings together hundreds of individuals, families, Scout troops, businesses and church groups to remove tons of trash and tires from sites along the Tennessee River, creeks and streams. Sites are typically located in Knox, Anderson and Blount counties. 

U.S. Sen. Bill Hagerty, R-Tenn.; U.S. Secretary of Energy Chris Wright; Rep. Chuck Fleischmann; R-Chattanooga; and Open AI CEO Greg Brockman spoke with the press during a tour of Oak Ridge-area nuclear facilities.  Ben Pounds/Hellbender Press

Visit by energy secretary doesn’t address program cuts as former fracking CEO downplays climate change threat; visit comes following diversity program cuts; full extent of Oak Ridge impacts still unknown

Hellbender Press typically avoids the use of anonymous sources. The sources in this story spoke on condition they not be identified so they could speak on a sensitive matter.

This story will be updated. The original stories continue below.

OAK RIDGE — U.S. Secretary of Energy Chris Wright denied that climate change was a “crisis” and downplayed its threat during a visit to an international hub of scientific expertise rattled by early actions of the second Trump Administration. His visit did little to allay fears of cuts to staff and programs at Oak Ridge National Laboratory, where the most concrete signs of change have been the dismantling of diversity efforts.

Wright visited ORNL on Feb. 28, and at a press conference defended the Trump administration’s actions on climate change, energy sources and the Department of Government Efficiency (DOGE), a group headed by Elon Musk that has recommended cutting programs and staff in various government departments.

He did not announce any layoffs at the lab itself, however, and implied research related to climate there will continue. Oak Ridge National Laboratory is home to many kinds of related research, including at the Climate Change Science Institute. CCSI does modeling and gathers data on the climate, as well as working on solutions to the problem.

Wright promoted research on artificial intelligence, which he called “Manhattan Project II,” and nuclear energy, and he appeared alongside Sen. Bill Hagerty, R-Tenn., Rep. Chuck Fleischmann R-Chattanooga and Open AI CEO Greg Brockman, who also spoke and answered questions. 

“I don’t think you’ll see any reduction in the science that we do regarding climate change or any of these other really big questions,” said Wright in response to a reporter’s questions about how cuts at the lab might affect climate change-related research at ORNL, which his department funds through a partnership with contractor Battelle and the University of Tennessee. He said, however, he still “100 percent” believed there was no climate “crisis” and said scientific reports backed up his view. 

“We haven’t seen an increase in the frequency or intensity of hurricanes, floods, droughts, storms. Wildfires are on an uptick because we stopped managing our forests,” he said. “Deaths from extreme weather, which is what you hear the press and politicians’ fearmongering about, it declined over 90 percent in my lifetime as the population’s grown. So climate change is a real phenomenon. It’s just not even remotely close to the world’s biggest problem.” He also said an intergovernmental climate change report also showed economists saying climate change was not as important as issues like education, free trade and “empowerment.”

These claims are a mixed bag of truth. While the frequency of hurricanes hitting the United States, for example, hasn’t increased, a recent Columbia University study showed the tropical cyclones’ intensity for the East and Gulf Coasts has. Also unmentioned by Wright was any impact the climate has on disease or health conditions apart from extreme weather, a subject on which experts at Tennessee’s own Vanderbilt University have sounded the alarm.

Wright was CEO of a hydraulic fracking company, Liberty Energy, before his appointment.

“It’s a real thing, but nothing in the science of climate change or in the economics of climate change shows it to be the world’s biggest problem,” Wright said. “When you call something a crisis, it means we don’t have time to stop and think. We’ve just got to take action. That’s exactly the opposite of what climate science is.”

During the meeting, he also defended Musk, DOGE and Trump’s actions generally while not announcing any such cuts for the civilian research at Oak Ridge National Laboratory or the weapons maintenance at Y-12, which is managed by a different contractor. A reporter at the event mentioned an earlier instance in which workers at Y-12 National Security Complex received termination letters that were then rescinded. While the reporter asked him to offer reassurance on job security, he sidestepped that question.