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AA football: Glacier heads to Butte for key battle

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So much for an orderly end to the Western AA football season.

Butte’s home loss to Helena Capital last week was less shocking as it was the Bulldogs’ first loss in the league than it was for the final score: 43-3, Bruins.

It was difficult to predict; so would be a season in which Glacier beat Capital, who then beat Butte a week later, after Butte beat Helena 34-20 on September 10 and before Helena gave Glacier a loss. from 48-24 last Friday.

“The West is incredibly competitive,” said Glacier coach Grady Bennett, whose club will start with Butte at 7:30 pm today inside Naranche Stadium. “I think it’s one of the best years in a long time.”

Six teams from the West will make the AA playoffs, and it looks like there are five teams vying for a first-round playoff game, including the undefeated Sentinel.

Flathead, meanwhile, will take on the aforementioned Helena Bengals tonight at Legends Stadium.

Glacier de la Butte

A pair of juniors start Butte’s offense: quarterback Jace Stenson and wide receiver Cameron Gurnsey, whose 45 catches and 608 yards put him within reach of a few school records.

So what happened last Friday? The Bulldogs gave up some big plays, including an 80-yard scoring by Tom Carter to start a 21-point third quarter.

“I think it just shows – and I told the team this to Helena – that the West is always competitive, and every night the team that shows up and performs best, plays best, can do anything. do, ”Bennett said.

The stinging loss doesn’t make Butte any less dangerous, and perhaps will.

“They’ve got a lot of peripheral speed, a lot of athletes,” Bennett said. “Similar to Helena and Sentinel. And Capital. All of these teams are very talented. When you watch the movie, it’s no surprise that the Bulldogs go after Helena.

Butte is expected to have defensive end / tight end Dylan Snyder, who had five sacks before missing the Capitale game with a knee injury. The Bulldogs lost security, however, due to a dislocated shoulder against the Bruins.

Linebackers Keegen Muffich, Luke Anderson and Connor Konda are defensive leaders; Casey Kautzman kicked a 51-yard field goal for Butte.

Glacier’s Jake Rendina continues to lead the West on rushing with 653 yards, although he was limited to 39 last week. The elder played with an ankle injury, and Helena’s game only scored the second time in 14 outings that he had not scored a touchdown.

“He’s definitely not 100%,” Bennett noted. “But he’s a tough kid, a brave kid. We had it checked out and there is nothing structurally wrong with it. But it’s tough – you try to keep him healthy, or shoot him for a game to make him healthier. And he wants to be there to help.

“We’ll see how he feels today and tomorrow.”

Bennett was hoping for a better position on the pitch, which was a problem for Helena, and more saves by a defense led by linebackers Wyatt Thomason and Royce Conklin.

Junior quarterback Gage Sliter continues to have a high passing percentage, and he has Connor Sullivan, Jake Turner, Luke Bilau and Tate Kauffman to throw.

It was Turner who scored all of the Wolfpack’s touchdowns last week.

“Jake Turner was just fantastic,” Bennett said. “And Connor Sullivan took a bullet in the knee and I was scared to death for him. He limped his way through the game and made games, played very well. One night when we obviously struggled a bit, these two played extremely well.

Helena in Flathead

The Bengals come to town with a nice rebound victory over Glacier, mostly on the arms and legs of Kaden Huot.

“Another very good quarterback is coming to town,” said Flathead coach Alex Cummings. “He is hard.”

Huot and linebacker / running back Marcus Evans are commits of the Montana Grizzlies, and Helena is also very talented. Flathead, looking for his first win, had moments against Missoula Sentinel in a 54-0 loss.

Dylan Zink forced a pair of fumbles and Kayden Berkey had a sack and a forced fumble and recovered. The running back races have gone to Joe Jones, but Cummings will be hopeful that Trevor Burke and Kaden Henshaw consolidate things there.

“I would really like to take them forward,” he said. “Henshaw was out last week with that hamstring. It would be nice to have those three back in the game.

Quarterback Jackson Walker continues to have good times amid a inconsistent attack. Brody Thornsberry was the main receiving target.

“Jackson is making good plays on his feet,” Cummings said. “The biggest challenge is up front, protecting it. We have a good group of athletes at the catcher. We have to do a good job of protecting and Jackson has to deliver the ball.

Among the problems against Sentinel was the punt team: the Spartans blocked a punt for a touchdown and the Braves couldn’t get out of their own end of the field.

“Go back the pitch, take care of the football, force the turnovers,” Cummings said. “And we have to tackle better. Against a tough football team we need to be able to do these things this week. “


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Coast Guard Participates in International North Pole Search and Rescue Exercise

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Members of the Coast Guard’s Seventeenth District participated in an international North Pole search and rescue exercise from September 1 to 15, 2021.

Two personnel from the Seventeenth District Coast Guard, Lt. Cmdr. Aaron Riutta and Mr. Paul Webb, participated in an international search and rescue exercise aboard a French ship at the geographic North Pole. The exercise allowed crews to test emergency communication capabilities with the International Arctic Rescue Coordination Centers (RCCs) and to test polar survival protocol and equipment.

The exercise simulated a fire aboard the ship to practice an abandon ship exercise on ice. There were 67 volunteer passengers and crew members who participated in the exercise and remained on the pack ice for 24 hours to test the ship’s polar survival plan and equipment.

The exercise allowed international Arctic RCCs, including the Juneau Joint RCC, to test their emergency communication capabilities with one another.

“The Seventeenth Coast Guard District in Alaska is the gateway to the US Arctic,” Riutta said. “The partnerships developed with the Arctic countries during this exercise support the common goal of protecting lives in our respective regions as they become more accessible. “

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DVIDS – News – The 109th Airlift Wing completes its missions in Greenland and heads to southern Antarctica

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NATIONAL AIR GUARD BASE, STRATTON, Nova Scotia — Airmen from the 109th Airlift Wing concluded their support for science missions in Greenland in September, then launched planes to Antarctica in October to support the search for the National Science Foundation at the South Pole.

From March through September, the 109th Aircrews flew 678 hours and delivered 1.3 million pounds of cargo, 32,000 gallons of fuel and 910 passengers to locations across the Greenland ice cap.

The 2021 Greenland support season started a month earlier and lasted until September. Normally, the squadron ends its flying operations in Greenland in August.
The wing added a month in March for additional training at the start.

Starting the missions a month in early March allowed the squadron to train further at Camp Raven, the Greenland training location the 109th uses to train on snow and ice landings. and on operations in the Arctic.

“Going up in March was beneficial for the initial setup of Camp Raven,” said Major Jacob Papp, chief of arctic operations for the 109th.

“This allowed us to keep a group of instructors and assessors up to date to then provide instructions for the next flight period,” Papp said.

An additional 8-day flight period was added at the end of the season to meet a National Science Foundation requirement to retrieve a construction crew at Summit Station, the year-round staffed research station. near the top of the Greenland ice cap.

In addition to the weather and long-distance flights to austere locations, handling the COVID-19 pandemic continued to pose challenges for New York National Guard aviators, according to Papp.

According to Pap.

On October 4, the wing launched the first of three planes bound for Antarctica to support National Science Foundation research from December 2021 to February 2022. The other two planes departed on October 15.
The wing has deployed 184 Airmen to operate from the National Science Foundation’s McMurdo Station, flying missions across the continent to move personnel and supplies.
The airmen deployed in October because COVID-19 health restrictions required longer-than-normal quarantines and layovers along the route from New York to New Zealand, which serves as the final transit area for Antarctica.
The airmen were also tested several times to make sure they had not contracted COVID-19.

The 109th’s primary mission for the 2021-2022 support season is to resupply science stations on the West Antarctic Ice Sheet, Siple Dome Field Camp and Amundson-Scott Station at the South Pole, according to Price.

The remote field camps serve as aviation hubs and refueling points for travel across the continent as well as scientific research in West Antarctica. The Amundsen-Scott Station at the South Pole is a National Science Foundation research facility located at the geographic South Pole.

At the end of the season, the Wing’s Airmen will make intercontinental trips from Christchurch, New Zealand to McMurdo Station.

Normally, flight crews pass through McMurdo Station and a typical Antarctic season runs from October to March.
During the 2020-2021 support season, the 109th’s Aircraft called in New Zealand and flew the minimum number of missions necessary to support the resupply efforts. These changes were made to control the spread of COVID-19.

Finally, the 109th Airmen flew six missions to Antarctica during the shortened 2020-2021 season. They carried out three medical evacuation missions, transported 148 researchers and support staff, and delivered 63,000 pounds of essential goods to research stations across the continent.

The LC-130s of the 109th Airlift Wing are operating as part of Operation Deep Freeze, the military support of the American Antarctic program.

Date taken: 10.07.2021
Date posted: 07/10/2021 10:27
Story ID: 406932
Site: SCOTLAND, NY, United States
Hometown: SCOTLAND, NY, United States

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From Iceland – “The Ice Church” appears off the northeast coast of Iceland

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Posted October 7, 2021

photo by

Rif field station

The Rif field station yesterday morning posted superb photos of an iceberg on its Facebook page. The accompanying photos bear the caption: “What a sight today: the ice church”.

As the Icelandic winter approaches, we search for our cozy traditional lopapeysa sweaters, the beautiful woolen garments that have kept Icelanders warm for generations. They are available for international delivery through our online store, and ours are hand-knitted here in Iceland from local wool.

The iceberg in question is located off the coast of Hraunhafnartangi, in northeast Iceland.

There were two reports of icebergs last week. One of them is stuck to the bottom of the sea, but the other is quite large and floats freely.

Icebergs are not common in Iceland. When they appear, they are usually spotted in the northwest, usually after breaking away from Greenland and traveling to Iceland by sea currents.

For this reason, iceberg activity is regularly monitored for the safety of shipping and fishing routes that may cross them.

See the full gallery below, or here.

Antarctic cold: the South Pole has just experienced its coldest winter in its history

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Extreme heat waves and increasing ice melting phenomena have become regular concerns due to global warming. In recent months, however, the reverse results have been equally surprising at the South Pole.

(Photo: Reuters Connect)

A colder south pole


The South Pole was not as immediately exposed to the impacts of global warming as its flashier cousin, the North Pole, which has become famous for its legendary vacation residents. So, while climatologists are worried about rising temperatures and melting ice floes, the South Pole has been largely spared from the consequences observed at the North Pole, which has experienced a significant melting of glaciers and has even been enveloped in smoke from forest fires this summer.

However, temperatures in the immense Antarctic ice tundra at the South Pole have dropped to levels not seen before this winter.

From April to September, the mainland’s winter months, average temperatures at the Amundsen-Scott station at the South Pole, located on the continent’s highest plateau, dropped to 78 degrees below zero Fahrenheit (61 degrees in below zero Celsius).

Related article: NASA Uncovers Mystery Of Endangered Lakes Hidden Under Antarctic Ice Cap

How cold can the South Pole get?

Sea ice is seen from NASA's Operation IceBridge research aircraft in the Antarctic Peninsula region

(Photo: Getty Images)

It wasn’t even the coldest temperature in that range. So it was standard cold.

According to statistics collected by the British Antarctic Survey, the harsh temperatures of winter 2021 were the lowest in more than 60 years. Since 1957, the study team, which is part of the Natural Environment Research Council, has been collecting temperature data at the South Pole and has never seen such a cold winter.

On September 30, the lowest recorded minimum temperature at Russian station Vostok was an astounding 110.9 degrees below zero Fahrenheit (79.4 degrees below zero Celsius). The temperature reading was 122 degrees below zero Fahrenheit at the time.

The Washington Post reported that the terrible season was caused by a continuous polar vortex that circled Antarctica throughout the winter.

AccuWeather senior meteorologist Jason Nicholls said the strong polar vortex could be linked to weak La Nia conditions that reappeared later in the southern hemisphere winter.

According to Nicholls, the vortex was strongest in July and August. Although it weakened slightly in September, it remained relatively robust overall.

“The polar stratospheric winds were stronger than usual, which caused the jet stream to shift towards the pole,” Amy Butler, NOAA scientist, told the Washington Post. “Cold air is trapped over most of Antarctica because of this.”

Read between the lines

Antarctic

(Photo: Getty Images)

As scientist Zack Labe pointed out on Twitter, the contrast between rising temperatures across the rest of the world and new depths of intense cold in Antarctica is stark.

However, experts warn that people should proceed with caution when interpreting Antarctic winter temperatures. Analysis of global weather patterns should not be based on a single season of extreme temperatures, whether hot or cold.

Professor Eric Steig of the Department of Atmospheric Sciences at the University of Washington told the Washington Post: “A cold winter is intriguing, but it doesn’t affect the long-term trend, which is warming.

Also read: NASA Reports Earth Trapped ‘Unprecedented’ Amount of Heat in Energy Imbalance

For more information on environmental action, be sure to follow Nature World News!

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“I am witnessing the damage climate change is having on our wildlife”

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Posted: October 7, 2021 at 4:17 a.m. EDT|Update: 1 hour ago

STOCKHOLM, October 7, 2021 / PRNewswire / – To underline the extreme urgency and increase the pressure on global politicians at COP26 Climate Change Conference, Bindi Irwin is now sending a message reminding leaders of the Australian bushfires in 2020. The message was posted with hundreds of videos of testimonials from young people around the world, each telling a story about how climate change is affecting their lives. Behind the initiative is the Perfect World Foundation’s Climate AID World Forum, which channels the voices of young people and mobilizes them to pressure politicians to stop talking and start taking action.

  • I support the Climate AID World Forum, says Bindi Irwin.

Bindi Irwin, daughter of an environmentalist Steve irwin, is now sending a message to put pressure on the leaders of the COP26 Conference on climate change reminding them of the Australian bushfires in 2020 and the importance of involving more people in understanding the effects of climate change.

  • It is important to involve more people to understand the drastic effects and consequences of climate change around the world. As a passionate wildlife advocate, I witness the damage climate change is having on our wildlife and wild places every day, Bindi says in the post.

Bindi also highlighted his concerns about the world’s wildlife and how rising temperatures are taking a toll on ecosystems and habitats, altering their living conditions and making it difficult for them to thrive in the wild as they are supposed to. .

  • The heartbreaking reality of climate change is that it threatens life and our natural environment every day, says Bindi.

Bindi’s message was sent to the leaders of the COP26 Climate Change Conference, as well as hundreds of videos of testimonials from young people around the world, each telling a story about how climate change is affecting their own lives. Another message is from Jóna Pétursdóttir, 26 years old Iceland, who talks about the disappearance of glaciers and the vast forest fires due to droughts in his country. Samuel schimmel, 21 years from Alaska, also discusses the negative impact of climate change on the way animals interact with the inhabitants of his region.

  • Whales come later each year, walrus don’t come at all, our seals are sick and our salmon are getting smaller, says Samuel schimmel, 21 years from Alaska, in his message.

The testimonial videos are an initiative of the Swedish nonprofit, The Perfect World Foundation, to highlight the extreme urgency and increase the pressure on global politicians and COP26 Climate change conference to stop talking and start taking action. The Perfect World Foundation’s climate initiative is known as the Climate AID World Forum.

  • Young people around the world are worried about the reality of a bleak future. They have – obviously – lost faith in the promises of their governments, global politicians and the UN. The future of the younger generation is at stake. The Perfect World Foundation and the Climate AID World Forum are partnering with nonprofits around the world to make the voices of young people heard and mobilize them to put pressure on our politicians so that they act, declares Ragnhild jacobsson, CEO and co-founder of The Perfect World Foundation.

New messages from young voices will be sent regularly by The Perfect World Foundation to leaders who will participate in COP26. A selection of posts can be viewed today on the Climate AID World Forum and on the Perfect World Foundation website.

  • I am very proud to support the Climate AID World Forum and to support it in its mission to help influence global change for climate sustainability, said Bindi.

CONTACT:
Daniel Wilke
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[email protected]
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AFP among the winners of the Covering Climate Now awards

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Published on: Amended:

New York (AFP)

Covering Climate Now, a global media project dedicated to reporting on global warming, on Wednesday awarded Agence France-Presse among the winners of its first journalism prize.

“The awards celebrate work that sets a standard of excellence for journalists around the world to emulate as newsrooms increase their coverage of climate history,” the consortium of more than 400 media outlets said in a statement. .

The 12 winners chosen from nearly 600 nominations included a multimedia piece by The Guardian, which allows audiences to listen to the sound of icebergs melting in Antarctica, and a long piece by ProPublica documenting migration caused by global warming.

Josh Edelson, a California-based AFP photographer specializing in forest fire coverage, won the photography category for his “Heart of Fire” series.

In the series, filmed in September 2020, Edelson documented the California wildfires, capturing “the overwhelming size of hell and its emotional impact on firefighters and displaced people,” the consortium said.

“In ten years of covering wildfires in California, I’ve never seen anything like this year has brought,” Edelson wrote in an essay that accompanies his photo series. “The new normal now seems to be that each fire season brings a new surprise.”

Firefighters fight fire north of Lake Oroville in California in September 2020 JOSH EDELSON AFP / File

“I am fascinated and passionate and also humbled by the power of these events and very motivated to continue telling these stories so that people can see what is going on inside the line of fire,” Edelson wrote.

Al Stahler: Air and light … and clouds

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By exploring the solar system, heading towards the sun, we come to the planet Venus; leaving, we arrive on Mars.

The more we study Venus and Mars, the better we understand Earth.

No matter what the diamond industry’s promise… no stone lasts forever. Wind, rain and ice… the gut of an earthworm… a bacterial biofilm… rocks collapse – turn to sand, turn to dust, they dissolve, they rust.



Which makes it difficult to determine whether billions of years ago volcanoes erupted, glaciers sank, lakes formed. The rocky evidence turned to mud, clay, disappeared, washed away.

With such fragile rocks, the oldest pieces in our “Earth-rock” collection… come from the moon.



Ditto for the atmosphere. The air we breathe today is not the same as it used to be. And the moon is no help: the moon is airless. But Venus and Mars hold clues.

The air does not weigh heavy … but it is not weightless. The air in a small room – say, ten by ten, by eight feet high – weighs sixty pounds.

Martian air is thin… that same room on Mars would only contain one pound of Martian air.

The air on Venus, on the other hand, is super thick: our little room on Venus would contain a good and a half tons – over 3,000 pounds – of Venusian air.

In the four and a half billion years since the planets were formed, Mars has lost most of its air, while Venus has retained its ancient air.

What happened to put Earth in between?

Despite their different thicknesses, the atmospheres of Venus and Mars are, in a way, very similar. The air on both planets is almost entirely – 95% – carbon dioxide. The Earth’s atmosphere, on the other hand, contains less – MUCH less – than one percent CO2.

Looking at Venus and Mars, we can conclude that when a planet is young, its atmosphere is almost entirely made up of carbon dioxide. The air on Venus and Mars has never changed in composition. What happened on Earth?

Liquid water.

Carbon dioxide dissolves in water (think club soda). When carbon dioxide dissolved in Earth’s ancient oceans, chemical reactions turned the gas into limestone. The rock then fell to the bottom of the sea and was buried. Almost all of Earth’s carbon dioxide is locked away, far from the surface, in rock.

(With its incredibly thick carbon dioxide atmosphere, the greenhouse effect on Venus has gone crazy … the average surface temperature of Venus is over eight hundred degrees Fahrenheit.)

Like Earth, Venus and Mars have clouds. The rarefied air of Mars can only contain thin icy clouds, like the wispy tails of mares we see high in Earth’s atmosphere.

The thick air of Venus, on the other hand, sports super thick clouds… clouds so thick that we have never seen the surface of Venus through a telescope… just clouds, from the pole. north to south.

Clouds are complicated. On a hot summer day, a cloud drifting above the sun casts shade and cools us down. But if you want to cool off at night, you have to wish for clear skies.

The clouds trap the heat. Clouds at night keep us warm.

Calculate why the Earth’s climate is as it is today… and how our climate might change in the future… clouds are a stimulus. Climatologists describe clouds as the most uncertain part of their climate calculations. No one knows what the clouds will do in the future.

So it would be interesting to know how the clouds behaved. It’s not easy, even with spacecraft.

The shining part of a crescent moon is lit by the sun. But on closer inspection, the dark part is not pitch black. The dark part of the moon is often lit by a faint ghostly light. This ashy light does not come directly from the sun… the dark part of the moon is not illuminated by the sun.

When sunlight hits the Earth, it is reflected, in particular, by clouds. By reflecting towards the moon, this light reflected by the clouds illuminates the dark part of the moon… with an “earthshine”.

A solar observatory sits above Big Bear Lake in the San Bernardino Mountains of southern California. For more than twenty years, the observatory has observed not only the sun, but also the moon… measuring the brightness of the earth.

Last August, researchers published their results: the brightness of the land reflected in the clouds off our coast seems to have faded a bit … implying that the ocean off the west coast not as cloudy as it used to be.

IN THE SKY

Sandhill cranes spend their summer north of us, but in the fall they fly south… to spend the winter with us here in Northern California in the Central Valley.

A flock of cranes – a flock of cranes – flies in a “V”, much like the “V” of a flock of geese. But sandhill cranes don’t honk… sandhill cranes buzz. If you hear buzzing above your head, look up. (A herd of cranes is also known as a “dance.” If you’re in the valley, look for sandhill cranes in the fields… dancing.)

Next Saturday night (October 9), find a spot to watch the sunset (as of this writing, the forecast is for clear skies). As soon as the sun goes down, Venus and the crescent moon will appear, close together, above the western horizon. Covered in clouds, Venus will be luminous. And the dark part of the moon will be illuminated by the glow of the earth.

Al Stahler enjoys sharing science and nature with his friends and neighbors on The Union and on KVMR-FM. He gives lessons for children and adults and can be contacted at [email protected]

The domes of Venus (seen on radar, radiated through clouds from the Magellan spacecraft) may have been formed by volcanoes.
Photo courtesy of E. De Jong et al. (JPL), MIPL, Team Magellan, NASA


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What is the winter weather forecast for dry ice on Mars?

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Ned Stark’s infamous meme strikes again, but this time it’s not about Earth or even a fictional universe on Earth. Mars is basking in summer right now, but remember what Stark said (before losing his mind): “Winter is coming.”

Most Martian snow is actually the same frozen carbon dioxide that we recognize as dry ice. While there is also water ice on the Red Planet, there is so much CO2 in its solid state that it makes up most of the polar ice caps, and up to 7 feet of snow made up of the same substance can be expected every winter. Winter on Mars can actually tell us more about how the planet experiences seasonal changes, such as the growth of its ice caps when it becomes a freezer and its retreat later.

So what can the Martian ice caps reveal about what happens to the planet during a deep freeze and throughout the summer? An international team of researchers, led by Haifeng Xiao from the Institute of Geodesy and Geoinformation at the Technical University of Berlin, recently published a study on its unusual snow and ice using the arXiv preprint server.

“For snow to form from clouds, carbon dioxide needs something to condense – for example, a small particle of silicate or dust,” Xiao told SYFY WIRE. “During the sublimation phase of the seasonal polar caps in spring, atmospheric warming associated with dust storm activity can accelerate the thinning process.”

To get an idea of ​​the amount of CO2 snow and ice found on Mars at different times of the year – remember that a Martian orbit and therefore a year is twice that of Earth – Xiao a used data from the Mars Orbiter laser altimeter (MOLA) aboard the Mars Global Surveyor (MGS). MOLA measures the height of ice caps, as well as their volume, to determine the amount of ice that accumulates and sublimates (goes directly from a solid to a vapor). Incorporating this data into a digital terrain model (DEM) gave the team a measure of the average snow surface.

There are other weather phenomena that can influence snowfall and CO2 vaporization on Mars. Dust in Martian snowfall lowers albedo, or the ability to reflect sunlight, and just like Winterfell, there is more snow left in the north in spring and summer because there are more particles of dust for this snow to form. As a result, sunlight bounces off the snow and ice on the surface and returns to space. While other studies had resulted in measurement errors, Xiao found that using both MOLA data and a DTM resulted in greater accuracy.

“To overcome the previous issues, we used the height corrections from the co-recording of underlying DTM-specific MOLA profile segments as a new approach, and a new post-correction procedure was also used for this. end, ”he said.

Unsurprisingly, the deepest snow and ice can be expected at the poles, especially the south pole; the poles are the most sensitive to climate change. Sublimation leads to strange formations like araneiform spiders. Xiao’s team will use their combined MOLA and DTM approach to study the polar regions in more detail while continuing to research how polar ice caps and CO2 snow and ice in general continue to evolve on Mars. Their research could serve as a basis to report any suspicious element during future observations with even more powerful instruments.

Over the course of a year on Mars, or 687 Earth days, atmospheric pressure will drop, as the accumulation of snow and ice removes about 30% of what is left of the planet’s almost non-existent atmosphere. The long-dead Viking landers actually helped prove it. The pressure in the atmosphere will rise and fall throughout the year in the final resting places of landers, and these fluctuations are consistent with the growth and shrinkage of ice caps.

Xiao’s colleague, planetologist Jingyan Hao, believes the cycle of condensation and sublimation could tell us more about the evolution of the Martian climate.

“If we can better understand how features such as araneiforms form and change, with seasonal polar ice caps varying under changing conditions, we will better understand the past and present climates and environments of Mars and how they evolved,” says -she.

Don’t expect Perseverance to start building a snowman anytime soon.


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The Martian landscape has been shaped by massive flooding fueled by climate change | Smart News

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Description of the image via the Institute of Plant Sciences: “Loire Vallis (white line) is an outlet canyon that formed from the overflow of a lake in the Parana basin (bypassed in white). black lines indicate other valleys formed by processes other than lake overflows Background is a colored topography derived from MOLA on a mosaic of THEMIS images The image is approximately 650 kilometers in diameter.
NASA / GSFC / JPL / ASU

Besides this iconic red dust, the planet Mars is covered in a spectacular topography, including the highest mountain in the solar system, countless impact craters and a great series of canyons and valleys. Now, new research theorizes that some of these gorges may have been carved into the Martian landscape by massive flooding as climate change melted the planet’s glaciers, according to an article published in the journal last week. Nature.

Mars is notoriously dry and dusty today, but billions of years ago the planet was probably home to a thick atmosphere and large amounts of liquid water. While research into whether this warm, humid life harbored on Mars is still ongoing, it is also increasingly clear that the effects of this period can still be found deeply imprinted on the planet’s surface today.

The once humid Mars was also regularly bombarded by asteroids, and it is likely that the craters caused by these impacts became water-filled lakes, reports Charles Q. Choi of Espace.com. As climate change began to spiral out of control on the Red Planet, these lakes appear to have breached, releasing vast amounts of water to the planet’s surface.

The magnitude is striking – researchers estimate that up to 25 percent of the volume of Martian valleys has been eroded by these lake breach floods, according to a statement published by the Planetary Science Institute.

While it was previously hypothesized that a relatively small amount of lake flooding had occurred on Mars, with the majority of its surface being shaped by flowing rivers, this new research suggests that these overflowing lakes were originally over 13,000 cubic miles of sculpted volume. away, a total ten times larger than Lake Michigan, by Espace.com.

“Our finding that about a quarter of the valley’s volume on Mars was geologically sculpted rapidly – on the order of days to months to years, as opposed to more than tens to hundreds of thousands of years ago – was indeed enough surprisingly, ”said geologist Timothy. Goudge, who was the lead research scientist, said Espace.com.

This kind of devastating flood has a close parallel with our planet. At the end of the last Ice Age, lakes held back by melting glaciers in the American Pacific Northwest burst their shores, releasing torrents of water that left their mark on the landscape.

And the parallels unfortunately still resonate today, reports Eric Mack of CNET. In mountain ranges such as the Himalayas and the Andes, melting glaciers create and fill large lakes that could eventually overflow and cause devastating flooding. While their impacts are unlikely to be in the range of the Martian Lake flooding, it is clear that climate change could continue to shape Earth’s landscape in the future.


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