Noise Pollution Is Pouring Into Protected Natural Areas

Rhona Wise/AFP/Getty Images
Rhona Wise/AFP/Getty Images

All right, folks. We’ve had our warnings, and now it really is time to keep it down. Experts say anthropogenic (human-made) noise is drowning out natural silence and sounds in the majority of protected areas in the United States. They published their research in the journal Science.

A babbling brook or a forest full of birdsong may soothe a stressed-out human, but for the plants and animals that live there, every single sound serves a function. Studies have shown that noise pollution can mess up animals’ migration paths, stop them from mating, and lead them to make fatally bad decisions.

Parks, wilderness, and other protected areas currently make up 14 percent of our country’s landmass. But as urbanization continues, spillover from human settlement draws nearer to every open space; 80 percent of the country is within .6 miles of a road and its accompanying traffic.

To find out how far our racket has reached, researchers captured audio recordings at 492 spots across the U.S.—some protected, some not—and used computer modeling to estimate natural sound levels at each location.

The results were not encouraging. The researchers say our noise pollution doubled noise levels in more than half of protected areas. In about one-fifth of those areas, noise was increased tenfold—an increase that shrinks the audible range of a bird’s call to 10 percent of its natural reach.


Median noise exceedance—the amount that anthropogenic noise increases sound levels above the natural level—in protected area units across the contiguous United States. 

R.T. Buxton et al., Science (2017)

“We were surprised we found such high levels of noise pollution in such high amounts of protected areas,” lead author Rachel Buxton of Colorado State University (CSU) told Science.

This is bad for people, too. Counterintuitive though it may sound, tourism plays an integral role in the success of national parks and other protected spaces. But an escape to nature loses some of its appeal if all you can hear are trucks and machinery.

Senior author George Wittemyer, also of CSU, said that while these findings are troubling, it’s important to remember that the worst is not inevitable.

“Numerous noise mitigation strategies have been successfully developed and implemented,” he said in a statement. “Our work provides information to facilitate such efforts in respect to protected areas where natural sounds are integral.”

"Next time you go for a walk in the woods, pay attention to the sounds you hear—the flow of a river, wind through the trees, singing birds, bugling elk,” Buxton added. “These acoustic resources are just as magnificent as visual ones, and deserve our protection.”

2624-Year-Old Cypress Tree Discovered in North Carolina Swamp

iStock/earleliason
iStock/earleliason

National Love a Tree Day on May 16 is a day to appreciate all the world's trees, but a bald cypress recently identified in North Carolina is especially deserving of recognition. As Live Science reports, scientists date the tree to 2624 years old, making it one the oldest living non-clonal trees on Earth.

For their study, recently published in the journal Environmental Research Communications, a team of researchers studied the rings of trees in North Carolina's Black River swampland to learn more about climate history in the eastern United States. Bald cypresses are known to have impressive lifespans, but after analyzing specimens in the Black River's Three Sisters Swamp, an area that's notable for its long-lived trees, the scientists discovered that cypresses can grow to be even older than previously believed. The 2624-year-old cypress tree they found predates the Great Wall of China and the Roman Empire. Other remarkably old trees, including a 2088-year-old cypress, were also identified in the same grove.

The North Carolina cypresses are old, but there are other types of trees that can grow to be much older. Clonal tress are genetically identical plants that reproduce asexually from a single ancestor. Old Tjikko, a clonal tree in Sweden, has a root system that dates back 9550 years.

Despite all that North Carolina's bald cypress trees have endured, their lives are under threat. The swamp where the 2624-year-old tree stands is located just 6.5 feet above sea level, which means that floods driven by climate change could damage its habitat. And though the grove is in a protected area, industrial runoff and logging that's happening nearby could impact the trees' health. North Carolina is considering establishing a Black River State Park where the trees grow to further protect the ancient natural wonders.

[h/t Live Science]

This Beverage Maker Lets You Enjoy Carbonated Drinks Without Hurting the Environment

Sparkel
Sparkel

Whether you're preparing breakfast before you head off to work or looking for something to wash down lunch, procuring the perfect beverage is vital. If it's a carbonated drink, though, with that comes the carbon dioxide emissions that arise every time you hear that classic "fssst" sound from cracking one open. These emissions are actually quite harmful to the environment.

But thanks to the newly unveiled Spärkel, curating carbonated drinks can be done without using CO2 or any artificial ingredients.

"If you walk into any grocery store, the explosion in the popularity of sparkling drinks is plain to see with more choices and flavors than ever before, but why buy off-the-shelf when it is healthier, cheaper, and more fun to create your own drinks at home?" Darren Hatherell, CEO of Spärkel, said in a press release. "With Spärkel, we created a system that lets people use the freshest ingredients and convenient carbonation process to experiment and unleash their creativity in a way that is kind to their wallet and the environment."

Users can place any kind of ingredients they wish—berries, citrus, cucumbers, etc.—along with their drink of choice—water, tea, cocktails—into the 25 oz. (750 mL) bottle and choose what level, from one to five, of fizz they'd like to have added to their drink. The sealed chamber generates CO2 naturally from a sachet of Spärkel Carbonator powder, which is "made of a special granulation of citric acid and sodium bicarbonate." The CO2 bubbles are cycled through the liquid, and within a couple of minutes, you have a completely personalized sparkling drink.

On top of all that, the beverage maker is suitable for any number of usages from water and juices to cocktails. It also comes in nine different colors—black, white, gray, yellow, orange, red, blue, green, and pink—so it can match up with whatever kitchen palette you have.

To get your hands on the Spärkel, check it out on Indiegogo, where it's available for a pre-sale price of $59.

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