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NOAA Suomi-NPP/University of Oxford/Simon Proud
NOAA Suomi-NPP/University of Oxford/Simon Proud

As Predicted, a Massive Iceberg Just Broke Off in Antarctica

NOAA Suomi-NPP/University of Oxford/Simon Proud
NOAA Suomi-NPP/University of Oxford/Simon Proud

Well, it finally happened. As Mental Floss reported last week, the last few decades have seen dramatic changes to the Larsen ice shelf, most recently with a growing rift along the section called Larsen C threatening to entirely break off. This week, it finally split, creating an iceberg the size of Delaware. At more than a trillion tons, it's one of the largest icebergs ever recorded.

The sections called Larsen A and B collapsed in 1995 and 2002, respectively, effectively reshaping the coastline of the Antarctic Peninsula.

The Larsen C crack spread slowly—you might say glacially—at first. But by June 2017, it was cruising right along, widening at a pace of about 32 feet per day. Experts at Swansea University’s Project Midas, which monitors the ice shelf, predicted the break would come within "hours, days, or weeks."

It took about a week. New imagery from NASA’s Suomi National Polar-orbiting Partnership (NPP) satellite shows a distinct split in the ice shelf.

"The rift was barely visible in these data in recent weeks," Adrian Luckman of Swansea University told the BBC, "but the signature is so clear now that it must have opened considerably along its whole length."

The precise cause of the split remains to be seen. While climate change is responsible for melting sea ice around the world, experts say this particular break may have been inevitable.

"We know that rifts like this periodically propagate and cause large tabular icebergs to break from ice shelves, even in the absence of any climate-driven changes," Chris Borstad, of the University Centre in Svalbard, told the BBC. "I am working with a number of colleagues to design field experiments on Larsen C to answer this specific question (by measuring the properties of the Joerg suture zone directly). But until we get down there and take some more measurements, we can only speculate."

[h/t BBC]

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Health
Watch a Tree Release a Massive "Pollen Bomb" Into the Air
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In case your itchy, watery eyes hadn't already tipped you off, spring is in the air. Some trees release up to a billion pollen grains apiece each year, and instead of turning into baby trees, many of those spores end up in the noses of allergy sufferers. For a visual of just how much pollen is being released into our backyards, check out the video below spotted by Gothamist.

This footage was captured by Millville, New Jersey resident Jennifer Henderson while her husband was clearing away brush with a backhoe. He noticed one tree was blanketed in pollen, and decided to bump into it to see what would happen. The result was an explosion of plant matter dramatic enough to make you sniffle just by looking at it.

"Pollen bombs" occur when the weather starts to warm up after a prolonged winter, prompting trees and grasses to suddenly release a high concentration of pollen in a short time span. Wind, temperature, and humidity levels all determine the air's pollen count for any given day, but allergy season settles down around May.

After determining that your congestion is the result of allergies and not a head cold, there are a few steps you can take to stave off symptoms before they appear. Keep track of your area's pollen report throughout the week, and treat yourself with antihistamines or nasal spray on days when you know it will be particularly bad outside. You can also keep your home a pollen-free zone by closing all the windows and investing in an air purifier. Check out our full list of seasonal allergy-fighting tips here.

[h/t Gothamist]

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environment
The UK Wants to Ban Wet Wipes, And Parents Aren't Happy About It
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The United Kingdom has grown determined in recent years to reduce consumption of single-use products that pollute the environment. In April, fast food restaurant fans were dismayed to hear that plastic drinking straws are being phased out; plastic cotton swabs are also on the chopping block. Now, users of wet wipes that remove makeup and clean infant bottoms are looking at a future where reaching for one of the disposable cloths may not be so easy.

The BBC reports that wet wipes containing non-biodegradable plastic are being targeted for elimination in the coming years. The wipes contribute to “fatbergs,” giant impactions of waste that can slow or block movement in sewage systems. By some estimates, 93 percent of blockages are caused by consumers flushing the wet wipes into toilets despite package instructions to throw them in the garbage.

Not everyone is backing the move, however. Jeremy Freedman, who manufactures the wipes under the name Guardpack, says that the wipes are useful to health care workers and food preparation employees. He argues their use also conserves water normally reserved for handwashing.

The most vocal critics might be parents, who use the wipes to clean their baby’s bottom following a diaper change. Sentiments like “ban the fools that flush them!” are circulating on Twitter. The UK is looking to phase out the wipes and other problematic plastic products over the next 25 years.

[h/t BBC]

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