New Time-Lapse Shows the Threat Meltwater Lakes Pose to Greenland’s Glaciers

Sean Gallup/Getty Images
Sean Gallup/Getty Images

A historic amount of ice has disappeared from Greenland's glaciers in recent years. During this summer's heat wave in Europe, which scientists linked to climate change, the Greenland ice sheet melted at a rate of up to billions of tons of ice per day. The phenomenon was part of a trend: The previous summer, the Arctic sea ice near northern Greenland broke up for the first time ever. Now, newly published time-lapse footage illuminates another aspect of the dire situation.

As Live Science reports, a British team of scientists captured this video of the Store Glacier in western Greenland on July 7, 2018. It shows a lake of meltwater on the ice rapidly draining in a span of hours. When cracks form on glaciers in the summer, they fill up with water, creating massive, temporary lakes. These meltwater lakes become a problem when the water drains deep into the glacier, where it can damage the base and dislodge ice chunks into the ocean. Melting ice that drifts out to sea is one of the driving forces behind rising sea levels.

In a paper published this month in the journal Proceedings of the National Academy of Sciences, the researchers report that the lake captured in the video flushed more than 1.26 billion gallons of water—the equivalent of 2000 Olympic-size swimming pools, notes Live Science—toward Store Glacier's base even without fully draining. This shows that meltwater lakes that don't drain completely should still be treated as serious threats to ice sheets.

You can check out the complete time-lapse from their study below.

[h/t Live Science]

Celebrate the Holidays With the 2020 Harry Potter Funko Pop Advent Calendar

Funko
Funko

Though the main book series and movie franchise are long over, the Wizarding World of Harry Potter remains in the spotlight as one of the most popular properties in pop-culture. The folks at Funko definitely know this, and every year the company releases a new Advent calendar based on the popular series so fans can count down to the holidays with their favorite characters.

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Right now, you can pre-order the 2020 edition of Funko's popular Harry Potter Advent calendar, and if you do it through Amazon, you'll even get it on sale for 33 percent off, bringing the price down from $60 to just $40.

Funko Pop!/Amazon

Over the course of the holiday season, the Advent calendar allows you to count down the days until Christmas, starting on December 1, by opening one of the tiny, numbered doors on the appropriate day. Each door is filled with a surprise Pocket Pop! figurine—but outside of the trio of Harry, Hermione, and Ron, the company isn't revealing who you'll be getting just yet.

Calendars will start shipping on October 15, but if you want a head start, go to Amazon to pre-order yours at a discount.

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Thailand National Park Officials Mailed Trash Back to Litterbugs

Spiderstock/iStock via Getty Images
Spiderstock/iStock via Getty Images

If hefty fines aren't enough to stop people from littering in Thailand's national parks, officials hope that good, old-fashioned guilt-tripping will do the trick. As The New York Times reports, Khao Yai National Park in central Thailand responded to a recent littering offense by mailing abandoned trash back to the litterbugs who left it there.

The responsible party left behind a tent filled with trash after camping overnight in Khao Yai. In Thailand, littering in a national park is punishable by up to five years in prison and a $16,000 fine. The park officials took a less conventional approach to this particular crime. After cross-referencing equipment rental forms with a discarded prescription bottle, they were able to track down the offenders and mail them their forgotten garbage.

The clear bag of trash came with a note. “You have forgotten some of your belongings at the Khao Yai National Park,” it read. “Please let us return these to you.” Varawut Silpa-archa, Thailand's environment minister, referenced the incident in a Facebook post, writing, “I will pick up every single piece of your trash, pack them well in a box, and mail it to your home as a souvenir." In addition to getting a package of trash in the mail, the unidentified campers have also been banned from staying in the park overnight.

Officials tasked with protecting the environment have seen firsthand the damage litter can cause. Plastics can take centuries to break down, and in that time they pose a serious threat to wildlife. Trash that builds up in places where people seek refuge can also be bad for their mental health. A 2015 study found that seeing litter on a beach counters the restorative qualities of being in nature.

[h/t The New York Times]