This never happens to me when I shoot at a frozen pond! Read the rest
This never happens to me when I shoot at a frozen pond! Read the rest
“NASA-supported researchers have found that ice covering Greenland is melting faster than previously thought. The action is happening out of sight, below the surface.”
Right now, it's cold in the Arctic. Days are dark, and ice grows to cover the dark sea. Come summer, lengthening days and warming temperatures will reverse that process. This is the ebb and flow of the Arctic, a natural cycle.
However, over the past several decades we have seen summers melt more and more of the ice that forms during the cold winter months. As a result, more and more dark seawater is exposed to the light of day.
NASA researchers, using several instruments on three separate satellites, has been collecting data for 15 years to find out why the ice is melting, and to be able to predict trends in future ice formation and melting. They reported on this data at the 2014 American Geophysical Union annual meeting, saying that 15 years worth is the absolute minimum amount of information needed for them to begin making long-term predictions. Climate trends, as opposed to weather trends, are averaged over 30 years, so they are about halfway there at this point in time.
The project to observe the Arctic is part of NASA's Clouds and the Earths Radiant Energy Systems (CERES) mission. They measure the Earth's reflected solar radiation, emitted thermal infrared radiation, and all emitted and reflected radiation.
The results so far indicate that the Arctic is absorbing energy from the sun five percent faster now during the summer months than it was when they first began monitoring in 2000. This is important because the rest of the Earth is still absorbing energy at pretty much the same rate. Read the rest
Representatives of the MPAA and the Immigration and Customs Enforcement Agency confirmed that they worked together to yank a Google Glass wearer out of a movie theater, detain him in a small room against his will, confiscate and inspect his electronics (including his phone) and coerce an interview out of him with legal threats. They believed, incorrectly, that their victim had been recording the movie with his gadget. The Google Glass set he wore had been fitted with prescription lenses and he was watching the movie through them because they corrected his vision.
The MPAA's and ICE's statements are bland and anodyne (ICE says that the interview was "voluntary," though the man's account contradicts this). Neither of them explain how it is that a movie theater employee can call an MPAA hotline, and how the MPAA can then command ICE law-enforcement officials to drop everything and rush down to a multiplex to roust a potential camcorderer and treat him like a presumptive criminal.
The problem for the MPAA of camcordering is that they would like to stagger the release of their films -- first to the theatrical exhibition channel, then to airplanes and hotel rooms, then to pay-per-view and streaming services and DVD, etc. This makes them more profitable, but only if they can keep each channel discrete. Lots of businesses struggle with their profit-maximization strategies, but only the MPAA gets to command the forces of federal law-enforcement in the service of their business-model, putting the cost of that strategy onto the tax-payer. Read the rest
This incredible video shot at Izatys Resort at Mille Lacs Lake, Minnesota shows an "ice shove," where currents, winds, or temperature differences push chunks of lake ice onto land like a drifting iceberg. (via karenstan, thanks Sean Ness!)
Last week, Dean told you about the lake at the North Pole, a pool of melted ice captured on camera by the North Pole Environmental Observatory webcams.
At Climate Central, Andrew Freedman provides some really fascinating context that illustrates the changing nature of, well, nature ... and draws a big, heavy underline on how difficult it can be to make assumptions about what is and what isn't an effect of climate change. Arctic sea ice is melting in concert with rising global average temperatures, but (contrary to the knee-jerk assumption I made about this story) the lake at the North Pole may or may not have anything to do with that. In fact, little pools have been forming at the North Pole in summer for as long as we've been paying attention. They don't actually represent the total melting of ice, but rather a layer of slushy water that forms on top of solidly frozen ice — usually, you could wade out through them and never get more than waist-deep.
What's more, the picture above wasn't taken at the North Pole. That's because the North Pole Elemental Observatory — which sits on mobile ice — has moved far from the actual North Pole since its launch. So, there probably is a lake (more of a pond, really) at the North Pole, but it might not be caused by climate change. While this lake, which isn't at the North Pole, could well be part of the melting sea ice that climate change does cause. Read the rest
For $12, Gama Go will sell you a mould that makes skull-shaped ice cubes. Not technically cubes, though, are they?
P.S. This reminded me that we require pyramid-shaped ice cubes (i.e. pyramids) for our illuminati parties. Unfortunately, all the molds available online seem to be floppy silicone ones with the tops flattened to be stable in the freezer or oven. This is clearly unacceptable -- does anyone make a nice hard plastic one with pointy tops? If not, we may have to kickstart this. Read the rest
Henry Kaiser is kind of our man on the inside in Antarctica. He works there every year as a film maker, turning science into movies. He sent this awesome Halloween greeting from underneath the sea ice.
Bonus: He also sent us a video taken at the same spot — only this has 100% fewer wacky masks and 100% more sea anemones. Read the rest
"The sound of running water is not something you used to hear on an ice cap." Arctic explorer Will Steger said this last weekend, during a presentation at the Science Museum of Minnesota. Steger was showing video clips from some of his travels, and he had to speak rather loudly. Otherwise, we couldn't have heard him over the sound of running water, flowing over, under, and through an ice cap.
Steger started traveling to the Arctic 18 years ago, and he's seen the region change dramatically over time. Today, he says, it's impossible to dogsled to the North Pole without bringing some kind of floatation device. You just can't rely any longer on the ice being solid all the way up.
But one of the most disturbing things Steger showed us was how global warming disintegrates glaciers. This isn't just about the melting that happens on top of the ice. It's really about what's happening below. Glaciers aren't a solid mass. Because they move, they're riddled with cracks and crevasses. When snow and ice on top of the glacier turns into water, there are plenty of ways for that water to seep down to the bottom of the glacier. Once there, the water acts as a lubricant. It makes it easier for the front of the glacier to break off and melt away into nothing.
You can watch that process happen in real time, as meltwater helps to break apart a glacier in a time-lapse video filmed between March 27, 2007 and March 4, 2012. Read the rest
I love this video of an iceberg collapsing in on itself in Wilhelmina Bay, Antarctica. (Word of warning, the people filming this loved the experience even more than I loved watching it, so much so that you may want to turn your speakers down.)
There are two kinds of icebergs, tabular and non-tabular. The tabular ones are what they sound like, big flat sheets of ice. Non-tabular are different—irregular shapes that become even more irregular as bits and pieces of them melt. Judging by the arched shape this iceberg had taken on, it probably falls into the non-tabular category. Implosion happens when melting weakens key structural support within that shape and bits of the iceberg begin to crash in on itself, accelerating the breakup. Both tabular and non-tabular icebergs and catastrophically fail like this, though.
Another fun iceberg fact: There are six size categories we sort icebergs by. Four of them have pretty predictable names: "Small", "Medium", "Large", and "Very Large". But below "small" are two size categories with a little more whimsy.
Icebergs with a hight of less than 3.3 feet and a length less than 16 feet are called "Growlers".
If the height shorter than 16 feet and the length shorter than 49 feet, then the iceberg is called, adorably, "a Bergy Bit". Yes, that is a technical term.
Numbers can be powerful things, but they don't necessarily help the average person grasp what's actually going on in science. Instead, personal stories tend to make a bigger impact. And that's understandable. Things you can see—or things that someone can show you—are going to stick in your head a bit more than a barrage of data.
This is especially a problem, I think, with climate change. Some of the largest impact of climate change, so far, have happened in places far removed from the experiences of the people who create the most anthropogenic greenhouse gases. So it's often hard to take the idea "the Earth is getting warmer" and really grok what that actually means.
That's why people like Will Steger are important. Steger is an explorer and science communicator who has won the National Geographic Society's John Oliver La Gorce Medal—an award that's also been given to Amelia Earhart, Robert Peary, Roald Amundsen and Jacques Cousteau.
He does most of his work in the Arctic and Antarctic, places where he has clearly seen the results of climate change. In a video of a presentation at the University of Minnesota, Steger shows you his experiences—and what they mean. How has climate change altered the landscape of the poles? What does that mean for the future of the Earth? Steger does a good job of making the data feel like something real.
Britain's Serious Organized Crime Agency (SOCA) seizes domains in similar fashion to U.S. Immigration and Customs Enforcement. But whereas American authorities' placeholders are all businesslike neoclassicism, Britain's look like something a phisher would email to scare you into giving up your PayPal password. The daftest part? Showing you your browser environment data, then threatening the operator of your Tor exit node with prosecution.
It's almost as if the only point of surveillance was to intimidate people!
Yet it proceeds from crude threats to the strangest abstraction. Imagine this messaging applied to actual counterfeit goods: "As a result of imported medications, young, emerging scientists may have had their careers damaged. If you have illegally bought medications online you will have damaged the future of the international pharmaceutical industry."
This clip from the BBC's Frozen Planet is one of the most amazing things you will ever see.
"Brinicle" is a clever portmanteau for an icy finger of death that forms naturally in the very cold seawater one finds around Earth's poles. A crust of sea ice can form on top of this water, and that's the first step to making a brinicle. Here's how polar oceanographer Mark Brandon explained the process in an article on the BBC website:
In winter, the air temperature above the sea ice can be below -20C, whereas the sea water is only about -1.9C. Heat flows from the warmer sea up to the very cold air, forming new ice from the bottom. The salt in this newly formed ice is concentrated and pushed into the brine channels. And because it is very cold and salty, it is denser than the water beneath.
The result is the brine sinks in a descending plume. But as this extremely cold brine leaves the sea ice, it freezes the relatively fresh seawater it comes in contact with. This forms a fragile tube of ice around the descending plume, which grows into what has been called a brinicle.
Check out that BBC website link for more information on how the Frozen Planet videographers captured this footage. That's also where you should go to watch the video when this YouTube version is inevitably taken down.
Thank you, Brittany. Truly freaking amazing.Observation tube under the Antarctic sea iceMusic video set beneath the Antarctic sea iceResearch Diving in Antarctica Read the rest