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‘Weather Whiplash’ Could Be a Disturbing New Normal in a Weird, Warming World

After praying for rain for weeks, the US state that saw some of the year’s biggest wildfires in 2022 found itself soon suffering a deadly deluge.

This story is part of CNET Zero, a series that chronicles the impact of climate change and explores what’s being done about the problem.

I’ve lived in the high desert of the southwestern US most of my life, primarily in New Mexico and Colorado. In those four decades, I’ve never seen it as dry here as in 2022. In all that time, I’ve also never seen it as wet as this year.

In northern New Mexico, the year began with months of unseasonal heat, dryness and extreme wind that fueled the largest wildfire of the year in the lower 48 states. It burned through 340,000 acres of the Sangre de Cristo mountains and destroyed or damaged over a thousand homes and other structures.

Then, in the middle of June, the annual monsoon rains thankfully arrived to douse the fires. But they stayed a couple months longer and dumped nearly twice as much moisture as the previous year (or the year before that). In fact, we were still seeing some monsoon pattern precipitation several weeks later than normal.

There’s a term for this remarkably rapid turnaround in weather patterns that an increasing number of scientists have begun to use, both in the mainstream media and academic publications: weather whiplash.

«The huge shift in weather you experienced in New Mexico this summer is a perfect example,» Jennifer Francis, acting deputy director at the Woodwell Climate Research Center in Massachusetts tells me.

Francis is lead author on a paper published in September in the Journal of Geophysical Research: Atmospheres on measuring weather whiplash events, which can be loosely defined as abrupt swings in weather conditions from one extreme to another.

At my home in the high desert this year, those swings translated into a Spring filled with smoke, heat, wind and the first emergency alert system notice I’d ever received warning me to get off the road immediately due to an approaching dust storm. By July the scene changed to one filled with rain, mud and more alerts, this time warning of flash flooding.

«Weather patterns are getting «stuck» in place more often, causing persistent heatwaves, drought, stormy periods, and even cold spells to happen more often,» Francis explained via email.

Her work shows all this stalled weather is connected to the rapid warming of the Arctic, which impacts the jet stream and in turn affects weather further south.

«These stuck weather patterns sometimes come to an abrupt end by changing abruptly to a very different pattern. This is weather whiplash.»

The phrase has been increasingly used in climate science circles for the past several years, but Francis points to a number of other instances of the phenomenon on full, sobering display in 2022 alone.

A July heatwave immediately followed exceptionally wet, cool weather in the Pacific Northwest and Northern Rockies in June. This turnaround was most dramatic in the Yellowstone region, where historic flooding in the first month of summer took many by surprise and claimed hundreds of homes but, somewhat miraculously, no lives. Shortly afterwards, temperatures soared several degrees above average and the region dried out.

Earlier in the year the inverse played out in Texas, where a spell of 67 consecutive dry, hot winter days in Dallas were followed by the city’s heaviest rains in 100 years, leading to flash flooding and a declaration of disaster by the state’s Governor.

Seasonal See-Saw

From late March until early June, much of northern New Mexico saw no measurable precipitation for a stretch of more than 70 days. Even for the current era, which many scientists suspect is the beginning of a megadrought in the southwestern US, that’s unusually dry.

This dryness, along with unseasonable heat and often extreme winds whipped up the embers of two controlled burns in the Santa Fe National Forest that had been secretly smoldering for months. Two wildfires sprang to life, eventually combining to form the 340,000-acre Calf Canyon-Hermit’s Peak fire complex.

The inferno burned homes, ranches, businesses and livestock, but didn’t claim any human lives – at least, not directly. Tens of thousands were evacuated from nearby cities and villages for weeks as fire devoured some of the state’s most rugged and beautiful terrain over the course of more than two months.

I visited some of the impacted communities to witness the total disruption and devastation while waiting to see if the flames would continue to push closer to my own community near Taos, less than 20 miles from the northwest edge of the fire.

For weeks it looked as though a nuclear bomb had been detonated just over the ridge of mountains near my home. A pyrocumulus mushroom cloud of smoke from the fire reached up into the atmosphere, a constant reminder of impending doom one valley over.

Sometimes the wind would shift and blow all that smoke our direction. It was possible to see this coming almost an hour in advance as a brown stream of smog would suddenly obscure the mountains. As it finally reached us, our eyes would water, our lungs would begin to burn and everything we wore or carried would take on the aroma of a barbecue. Minutes later, the sun would be blotted out on an otherwise sunny day. They were all sunny days back then.

My family would retreat inside every time the smoke came, of course. Then, in early June, another fire ignited on the opposite side of our community from where the megablaze was burning. We found ourselves surrounded. No matter which way the wind blew, there was a good chance it would blow smoke in our faces.

At this point our daughter was quarantined at home with COVID. We faced the very apocalyptic choice of keeping the windows open for better anti-viral ventilation or closing them to keep the smoke out. It wasn’t a particularly hard choice. We closed the windows. Inhaling smoke certainly isn’t great for getting over COVID, after all.

Then, in mid-June, both the weather and its impact took dramatic turns. The annual monsoon rains arrived right on time, and with an unusual intensity. Ironically, this is how New Mexico’s largest ever wildfire ended up claiming human lives after the flames had stopped spreading.

The burn scars left by wildfires absorb less moisture than healthy landscapes with plenty of vegetation, and that led to flash flooding. June and July in northern New Mexico saw repeated cycles of heavy rains, including a particularly heavy storm on July 21 that deluged the Calf Canyon-Hermit’s Peak burn scar. A flash flood tore through the Tecolote Canyon subdivision outside the city of Las Vegas, New Mexico, sweeping tons of mud, rocks, burned trees and even vehicles down the creek drainage. Tragically, three people were caught in the flood and died.

In the span of weeks, citizens in New Mexico went from fleeing fires to fleeing floods. Whiplash might describe the disjointed nature of this past summer, but it doesn’t begin to capture the anxiety brought on by this new realization that life in the 21st century might be about being ready for absolutely anything.

In June I was hauling water to my off-grid home in the back of a truck, 200 gallons at a time, and praying for the monsoon to arrive. The following month I was digging trenches to divert as much water as possible out of my driveway to lessen the persistent rain’s irritating habit of turning it into a muddy quagmire. This is to say nothing of the background anxiety created by nearby fires, floods and at least one epic wind event that took the roof off a neighbor’s house.

The Climate Connection

At least one group of researchers predicted this before it happened. Well, sort of.

On April 1, just five days before that massive fire in New Mexico sprang to life, a paper was published in the journal Science Advances titled «Climate change increases risk of extreme rainfall following wildfire in the western United States.»

The paper describes how scientists used climate models to predict that if global warming continues unabated, the western US will begin to see many more instances of extreme wildfires followed by extreme rainfall. They didn’t wait decades to see their predictions come true. It happened just weeks later.

«I would qualify what happened in New Mexico as extreme precipitation following extreme wildfires,» UCLA and National Center for Atmospheric Research climate scientist Daniel Swain, one of the authors of the study, told me. «Some of those fires were literally still burning pretty vigorously when the rain started. You really can’t get any whiplashier than that.»

Swain is one of a number of climate scientists digging into the data to determine what is creating this new, very 21st century sort of see-saw. One of the main factors, he says, is that the warming of the planet is accelerating the water, or hydrologic, cycle that moves moisture from surface water to the atmosphere and back again via precipitation.

«You actually get an exponential increase in the water-vapor-holding capacity of the atmosphere,» he explains.

Basically, for every degree centigrade of warming, the atmosphere can hold 7% more moisture. These increases compound over time, sort of like interest in a bank account, which provides the exponential acceleration of extreme rainfall events that are more frequent and more intense.

Swain describes our atmosphere as a sponge that grows ever larger as it warms, periodically soaking up potentially larger amounts of moisture and then dumping it all at once on some unfortunate locale. But this expanding sponge is also exacerbating dryness in places where it extracts an increasing amount of water out of the landscape.

This means drier dry periods and wetter precipitation events, sometimes back-to-back. Whiplash.

Swain cautions that it’s too soon to know how much of the weather whiplash experienced in northern New Mexico this year can truly be blamed on climate change versus just basic bad luck and the natural variation and randomness that we’d see in our weather patterns even without global warming.

Climate scientists have developed so-called «weather attribution» models that quantify the effects of climate change directly on specific weather events like what was experienced this year in New Mexico, but the process can take several months or longer.

Weirder than Warming

When I first started covering climate two decades ago, a climatologist told me the phrase «global warming» wouldn’t fully describe what was going to happen to our environment and that it would be more like «global weirding.»

That phrase never caught on, but I’m starting to think weather whiplash might be its appropriate successor.

For decades now, talk about the warming climate has focused on increasing temperatures, but usually these are increasing average temperatures. However, we don’t experience climate in the aggregate. We live it day-to-day as weather that is increasingly extreme.

«If you get 20 inches of rainfall distributed as half an inch a day for 40 days it’s a very different picture than getting 20 inches of rainfall because it rains 10 inches one day and 10 inches the next,» Swain suggests. «The average might be the same, but you’re living in a completely different world.»

In other words, our experience of climate change can’t be fully captured by talking about how much temperatures or sea levels or rainfall are rising. It’s the extremes and the weirdness and the chaotic swings from one state to another that tell the real story and inflict the most trauma.

At the point this summer when wildfires were burning on both sides of our community I had a weird flashback to my childhood. One of my favorite things to read as a kid in the previous century was Choose Your Own Adventure books. They had this intoxicating ability to provide both an escape and agency at the same time.

It feels like we could use a little more of both things right now. Life today has the feel of all the potential adventures in those books happening back-to-back and often simultaneously. The only choice is to be ready for anything.

Technologies

You Can Watch an Exclusive Avatar: Fire and Ash Scene on TikTok Right Now

Disney and TikTok partner on an immersive content hub for James Cameron’s latest movie about the alien Na’vi.

If you’re not quite ready to head to the theater to watch Avatar: Fire and Ash, an exclusive scene preview might sell you on the visual spectacle. As part of a new collaboration with the social media giant, Disney is posting snippets of its new movie to its TikTok account.

This scene isn’t part of any trailer and won’t be posted to other social media accounts, making TikTok the only place you can view it — unless you buy a movie ticket. A first look at the new movie’s scenes isn’t the only Avatar-related bonus on the social media platform right now, either. TikTok has partnered with the house of mouse to bring an entire «immersive content hub» to the app.

A special section of TikTok includes quizzes and educational videos that explore the alien world of Pandora shown off in the movies. On TikTok, you can take a personality quiz to find out what Na’vi clan you most closely align with and unlock a special profile picture border to use on your account.

Science and fiction blend together with a series of videos from real doctors who explain the basis for some of Avatar’s world-building. If you want to learn about exoplanets or how realistic the anatomy of the movie’s alien animals is, these videos will feed your brain while still providing entertainment value.

Perhaps the most enticing part of Disney’s latest social media collaboration is the opportunity for fans to win prizes and trips. TikTok creators who make edits with the #TikTokAvatarContest hashtag are entered into a competition to win Avatar merchandise. The biggest winners will be able to take a trip to visual effects studio Wētā Workshop in New Zealand or visit Avatar director James Cameron’s Lightstorm Entertainment Studio in Los Angeles.

Avatar: Fire and Ash is the third installment in director Cameron’s cinematic passion project. While the first Avatar movie was released in 2009, Cameron didn’t release another entry in the franchise until 2022. In total, there is a five-movie arc planned for the indigo alien Na’vi on the moon of Pandora.

The Avatar movies are known for pushing the boundaries of CGI visual effects in cinema. They are also historically big winners at the box office: the original Avatar is the highest-grossing film of all time, earning $2.9 billion across its theatrical releases. Its sequel, Avatar: The Way of Water, is the third-highest-grossing film of all time, trailing Avengers: Endgame. You can stream those movies on Disney Plus.

It remains to be seen whether Avatar: Fire and Ash will financially live up to its predecessors. The film currently has mixed reviews from critics on Rotten Tomatoes.

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Technologies

Brain-Inspired Algorithms Could Dramatically Cut AI Energy Use

A new study dives into a major redesign for AI architecture.

One major issue facing artificial intelligence is the interaction between a computer’s memory and its processing capabilities. When an algorithm is in operation, data flows rapidly between these two components. However, AI models rely on a vast amount of data, which creates a bottleneck. 

A new study, published on Monday in the journal Frontiers in Science by Purdue University and the Georgia Institute of Technology, suggests a novel approach to building computer architecture for AI models using brain-inspired algorithms. The researchers say that creating algorithms in this manner could reduce the energy costs associated with AI models. 

«Language processing models have grown 5,000-fold in size over the last four years,» Kaushik Roy, a Purdue University computer engineering professor and the study’s lead author, said in a statement. «This alarmingly rapid expansion makes it crucial that AI is as efficient as possible. That means fundamentally rethinking how computers are designed.»


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Most computers today are modeled on an idea from 1945 called the von Neumann architecture, which separates processing and memory. This is where the slowdown occurs. As more people around the world utilize data-hungry AI models, the distinction between a computer’s processing and memory capacity could become a more significant issue.

Researchers at IBM called out this problem in a post earlier this year. The issue computer engineers are running up against is called the ‘memory wall.’

Breaking the memory wall

The memory wall refers to the disparity between memory and processing capabilities. Essentially, computer memory is struggling to keep up with processing speeds. This isn’t a new issue. A pair of researchers from the University of Virginia coined the term back in the 1990s. 

But now that AI is prevalent, the memory wall issue is sucking up time and energy in the underlying computers that make AI models work. The paper’s researchers argue that we could try a new computer architecture that integrates memory and processing. 

Inspired by how our brains function, the AI algorithms referred to in the paper are known as spiking neural networks. A common criticism of these algorithms in the past is that they can be slow and inaccurate. However, some computer scientists argue that these algorithms have shown significant improvement over the last few years. 

The researchers suggest that AI models should utilize a concept related to SNNs, known as compute-in-memory. This concept is still relatively new in the field of AI. 

«CIM offers a promising solution to the memory wall problem by integrating computing capabilities directly into the memory system,» the authors write in the paper’s abstract. 

Medical devices, transportation, and drones are a few areas where researchers believe improvements could be made if computer processing and memory were integrated into a single system. 

«AI is one of the most transformative technologies of the 21st century. However, to move it out of data centers and into the real world, we need to dramatically reduce its energy use,» Tanvi Sharma, co-author and researcher at Purdue University, said in a statement. 

«With less data transfer and more efficient processing, AI can fit into small, affordable devices with batteries that last longer,» Sharma said. 

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Technologies

Today’s NYT Connections: Sports Edition Hints and Answers for Dec. 17, #450

Here are hints and the answers for the NYT Connections: Sports Edition puzzle for Dec. 17, No. 450.

Looking for the most recent regular Connections answers? Click here for today’s Connections hints, as well as our daily answers and hints for The New York Times Mini Crossword, Wordle and Strands puzzles.


Today’s Connections: Sports Edition is pretty challenging. How well do you know French soccer? If you’re struggling with today’s puzzle but still want to solve it, read on for hints and the answers.

Connections: Sports Edition is published by The Athletic, the subscription-based sports journalism site owned by The Times. It doesn’t appear in the NYT Games app, but it does in The Athletic’s own app. Or you can play it for free online.

Read more: NYT Connections: Sports Edition Puzzle Comes Out of Beta

Hints for today’s Connections: Sports Edition groups

Here are four hints for the groupings in today’s Connections: Sports Edition puzzle, ranked from the easiest yellow group to the tough (and sometimes bizarre) purple group.

Yellow group hint: Put it on your noggin.

Green group hint: Goes before a division of the year.

Blue group hint: French football.

Purple group hint: Think Louisville Slugger.

Answers for today’s Connections: Sports Edition groups

Yellow group: Headgear.

Green group: Prefixes to -season.

Blue group: Ligue 1 teams.

Purple group: Batting ____.

Read more: Wordle Cheat Sheet: Here Are the Most Popular Letters Used in English Words

What are today’s Connections: Sports Edition answers?

The yellow words in today’s Connections

The theme is headgear. The four answers are cap, hat, mask and visor.

The green words in today’s Connections

The theme is prefixes to -season. The four answers are mid, off, post and pre.

The blue words in today’s Connections

The theme is Ligue 1 teams. The four answers are Lens, Marseille, Nice and PSG.

The purple words in today’s Connections

The theme is batting ____. The four answers are average, gloves, practice and stance.


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