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U.S. EPA Announces Landmark Mercury and Toxic Protections from Coal Plants

U.S. EPA Announces Landmark Mercury and Toxic Protections from Coal Plants

Appalachian Voices

The U.S. Environmental Protection Agency (EPA) released guidelines Dec. 21 that will save lives and protect human health from dangerous heavy metals like mercury and other toxic pollutants from coal-fired power plants.

A big thanks goes out to all of you who took the time to let the EPA know why clean air and water are important to you—this is your victory to celebrate.

These guidelines are important for protecting vulnerable populations like women of child-bearing age, babies, small children and the elderly. Mercury accumulates in fish, making them unsafe to eat. Other forms of air pollution contribute to asthma and other respiratory issues.

EPA’s guidelines are expected to prevent up to:

  • 17,000 premature death
  • 4,300 cases of chronic bronchitis
  • 110,000 children’s asthma attacks
  • 830,000 lost work days

Good public health policy is also good economic policy. The EPA estimates that for every dollar spent to reduce this pollution, we stand to gain $5-$13 in health benefits.

As we celebrate this victory during the holiday season, we are once again reminded of the tremendous power of people like you speaking up for the things they value most.

It's been a tough year for those who care deeply about clean air and water. We have witnessed a slew of congressional attacks on our right to clean air and water, spurred on by the coal industry. This year, more than 190 votes were cast to weaken environmental protections, with 28 of those votes designed to undermine Clean Water Act protections.

There are more challenges ahead in the new year. With tomorrow marking the 3rd anniversary of the largest coal ash disaster at a TVA plant in Tennessee, the EPA has yet to issue standards on coal ash diposal and storage—and some members of Congress are trying to make sure the EPA doesn't get the chance.

Thank the EPA for standing up for healthy communities, and encourage them to continue to protect our waterways from coal pollution.

For more information, click here.

Eating too much black licorice can be toxic. Nat Aggiato / Pixabay

By Bill Sullivan

Black licorice may look and taste like an innocent treat, but this candy has a dark side. On Sept. 23, 2020, it was reported that black licorice was the culprit in the death of a 54-year-old man in Massachusetts. How could this be? Overdosing on licorice sounds more like a twisted tale than a plausible fact.

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A net-casting ogre-faced spider. CBG Photography Group, Centre for Biodiversity Genomics / CC BY-SA 3.0

Just in time for Halloween, scientists at Cornell University have published some frightening research, especially if you're an insect!

The ghoulishly named ogre-faced spider can "hear" with its legs and use that ability to catch insects flying behind it, the study published in Current Biology Thursday concluded.

"Spiders are sensitive to airborne sound," Cornell professor emeritus Dr. Charles Walcott, who was not involved with the study, told the Cornell Chronicle. "That's the big message really."

The net-casting, ogre-faced spider (Deinopis spinosa) has a unique hunting strategy, as study coauthor Cornell University postdoctoral researcher Jay Stafstrom explained in a video.

They hunt only at night using a special kind of web: an A-shaped frame made from non-sticky silk that supports a fuzzy rectangle that they hold with their front forelegs and use to trap prey.

They do this in two ways. In a maneuver called a "forward strike," they pounce down on prey moving beneath them on the ground. This is enabled by their large eyes — the biggest of any spider. These eyes give them 2,000 times the night vision that we have, Science explained.

But the spiders can also perform a move called the "backward strike," Stafstrom explained, in which they reach their legs behind them and catch insects flying through the air.

"So here comes a flying bug and somehow the spider gets information on the sound direction and its distance. The spiders time the 200-millisecond leap if the fly is within its capture zone – much like an over-the-shoulder catch. The spider gets its prey. They're accurate," coauthor Ronald Hoy, the D & D Joslovitz Merksamer Professor in the Department of Neurobiology and Behavior in the College of Arts and Sciences, told the Cornell Chronicle.

What the researchers wanted to understand was how the spiders could tell what was moving behind them when they have no ears.

It isn't a question of peripheral vision. In a 2016 study, the same team blindfolded the spiders and sent them out to hunt, Science explained. This prevented the spiders from making their forward strikes, but they were still able to catch prey using the backwards strike. The researchers thought the spiders were "hearing" their prey with the sensors on the tips of their legs. All spiders have these sensors, but scientists had previously thought they were only able to detect vibrations through surfaces, not sounds in the air.

To test how well the ogre-faced spiders could actually hear, the researchers conducted a two-part experiment.

First, they inserted electrodes into removed spider legs and into the brains of intact spiders. They put the spiders and the legs into a vibration-proof booth and played sounds from two meters (approximately 6.5 feet) away. The spiders and the legs responded to sounds from 100 hertz to 10,000 hertz.

Next, they played the five sounds that had triggered the biggest response to 25 spiders in the wild and 51 spiders in the lab. More than half the spiders did the "backward strike" move when they heard sounds that have a lower frequency similar to insect wing beats. When the higher frequency sounds were played, the spiders did not move. This suggests the higher frequencies may mimic the sounds of predators like birds.

University of Cincinnati spider behavioral ecologist George Uetz told Science that the results were a "surprise" that indicated science has much to learn about spiders as a whole. Because all spiders have these receptors on their legs, it is possible that all spiders can hear. This theory was first put forward by Walcott 60 years ago, but was dismissed at the time, according to the Cornell Chronicle. But studies of other spiders have turned up further evidence since. A 2016 study found that a kind of jumping spider can pick up sonic vibrations in the air.

"We don't know diddly about spiders," Uetz told Science. "They are much more complex than people ever thought they were."

Learning more provides scientists with an opportunity to study their sensory abilities in order to improve technology like bio-sensors, directional microphones and visual processing algorithms, Stafstrom told CNN.

Hoy agreed.

"The point is any understudied, underappreciated group has fascinating lives, even a yucky spider, and we can learn something from it," he told CNN.

Financial institutions in New York state will now have to consider the climate-related risks of their planning strategies. Ramy Majouji / WikiMedia Commons

By Brett Wilkins

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