Scientists in Belgium find a surprising reason why Greenland's glacier is melting so fast.
A team of scientists in Belgium has discovered a somewhat counterintuitive reason the Greenland ice sheet is melting at night.
Photo by Joe Raedle/Getty Images.
The surprise culprit? Clouds.
Jerks. Photo by Sy Clark/Flickr.
It may seem just ... kind of wrong to the many of us whose brains reflexively associate "clouds" with "chilly." If cloudy weather indeed equals cold weather, ice should ... stay frozen better on a cloudy day, right? According to this new study, however, increased cloud cover over the glacier actually accelerates the rate of melting.
Here's how it works, according to Kristof Van Tricht, University of Leuven professor and lead author on the paper:
"Over the entire Greenland ice sheet, clouds raise the temperature, which triggers additional meltwater runoff: 56 billion tons per year — a third more than clear skies. Contrary to what you would expect, this effect is not so much visible during the daytime melting process, but rather during the following night. A snowpack is like a frozen sponge that melts during the day. At night, clear skies make a large amount of meltwater in the sponge refreeze. When the sky is overcast, by contrast, the temperature remains too high and only some of the water refreezes. As a result, the sponge is saturated more quickly and excess meltwater drains away."
In other words...
The clouds basically act as a giant, celestial Snuggie for the glacier.
Overcast skies at night prevent heat — which builds up during the day while the sun is out — from escaping from the surface of the ice sheet. That heat makes it too warm for the water on the glacier's surface to refreeze when it's supposed to — and once the water drains off the glacier, it's lost forever.
Climate change is the elephant in the room here.
An iceberg that cleaved off the Greenland ice sheet. Photo by Joe Raedle/Getty Images.
Of course, the results of the study would just be a cool, neat, "ain't science something" thing if the melting of the Greenland ice sheet didn't have the potential to cause seriously catastrophic problems for everyone on Earth.
At the current rate, Greenland is losing over 300 billion tons of ice a year. The consequences of the ensuing sea level rise are expected to include anything from increased flooding during storms to the evacuation of coastal cities — basically, nothing terribly desirable.
Researchers hope that identifying this new behavior will help them predict future melting events — and the overall rate of sea level swell — more effectively, rendering them better able to gird humanity's loins for the worst (or, at least, the not-so-good).
In the meantime, continuing to ratchet back all the carbon we're putting in the air will only help things for the better.
The major climate agreement signed in Paris last year is super ambitious with good reason: We need a super ambitious plan if we're going to have any hope of limiting the damage to our sea and sky that's already begun, and we need to make sure we stick to it.
That means electing politicians who not only believe that manmade climate change is a real thing, but are willing to take the necessary policy steps — de-incentivizing the burning of fossil fuels while investing in renewable energy — that will help us snuff it out for good.
That way, those bastard clouds can't threaten us anymore.
That's right: Back off, sickos. Photo by Sy Clark/Flickr.
There's a reason why some people can perfectly copy accents, and others can't
Turns out, there's a neurodivergent link.
A woman in black long sleeve shirt stands in front of mirror.
Have you ever had that friend who goes on vacation for four days to London and comes back with a full-on Queen's English posh accent? "Oooh I left my brolly in the loo," they say, and you respond, "But you're from Colorado!" Well, there are reasons they (and many of us) do that, and usually it's on a pretty subconscious level.
It's called "accent mirroring," and it's actually quite common with people who are neurodivergent, particularly those with ADHD (Attention Deficit Hyperactivity Disorder). According Neurolaunch, the self-described "Free Mental Health Library," "Accent mirroring, also known as accent adaptation or phonetic convergence, is the tendency to unconsciously adopt the accent or speech patterns of those around us. This linguistic chameleon effect is not unique to individuals with ADHD, but it appears to be more pronounced and frequent in this population."
Essentially, when people have conversations, we're constantly "scanning" for information—not just the words we're absorbing, but the inflection and tone. "When we hear an accent, our brains automatically analyze and categorize the phonetic features, prosody, and intonation patterns," writes Neurolaunch. For most, this does result in copying the accent of the person with whom we're speaking. But those with ADHD might be more sensitive to auditory cues. This, "coupled with a reduced ability to filter out or inhibit the impulse to mimic…could potentially explain the increased tendency for accent mirroring."
While the article explains further research is needed, they distinctly state that, "Accent mirroring in individuals with ADHD often manifests as an unconscious mimicry of accents in social situations. This can range from subtle shifts in pronunciation to more noticeable changes in intonation and speech rhythm. For example, a person with ADHD might find themselves unconsciously adopting a Southern drawl when conversing with someone from Texas, even if they’ve never lived in the South themselves."
People are having their say online. On the subreddit r/ADHDWomen, a thread began: "Taking on accents is an ADHD thing?" The OP shares, "My whole life, I've picked up accents. I, myself, never noticed, but everyone around me would be like, 'Why are you talking like that??' It could be after I watched a show or movie with an accent or after I've traveled somewhere with a different accent than my 'normal.'
They continue, "Apparently, I pick it up fast, but it fades out slowly. Today... I'm scrolling Instagram, I watch a reel from a comedian couple (Darcy and Jeremy. IYKYK) about how Darcy (ADHD) picks up accents everywhere they go. It's called ADHD Mirroring??? And it's another way of masking."
(The OP is referring to Darcy Michaels and his husband Jeremy Baer, who are both touring comedians based in Canada.)
Hundreds of people on the Reddit thread alone seem to relate. One comments, "Omfg I've done this my whole life; I'll even pick up on the pauses/spaces when I'm talking to someone who is ESL—but English is my first language lol."
Sometimes, it can be a real issue for those around the chameleon. "I accidentally mimicked a waitress's weird laugh one time. As soon as she was out of earshot, my family started to reprimand me, but I was already like 'oh my god I don’t know why I did that, I feel so bad.'"
Many commenters on TikTok were shocked to find out this can be a sign of ADHD. One jokes, "Omg, yes, at a store the cashier was talking to me and she was French. She's like 'Oh are you French too? No, I'm not lol. I'm very east coast Canada."
And some people just embrace it and make it work for them. "I mirror their words or phrase! I’m 30. I realized I start calling everyone sweetie cause my manager does & I work at coffee shop."