Showing posts with label degelo. Show all posts
Showing posts with label degelo. Show all posts

Friday, June 28, 2024

Monte Everest : O degelo reaviva vítimas do um sonho !

 




credit: Prakash MATHEMA


Nas encostas sagradas do Everest, as alterações climáticas estão a reduzir a neve e o gelo, expondo cada vez mais corpos de alpinistas que morreram na tentativa de alcançar o cume da montanha mais alta do mundo. Uma equipa tem a difícil e dolorosa missão de resgatar os restos mortais das vítimas que pereceram ao tentar escalar o Mont Everest.

Desde 1920, mais de 300 alpinistas ficaram para sempre no Mont Everest. Só este ano, já morreram oito.





Banshi Lai

Alpinista indiano morre no Mont Everest


O último, foi em 28 Maio deste ano. Um alpinista indiano morreu apesar de ter sido resgatado. Banshi Lai, indiano de 46 anos, foi retirado do cume do Everest uma semana antes, mas "morreu no hospital" em Katmandu," disse à AFP Rakesh Gurung, do Departamento de Turismo do Nepal.

O Departamento de Turismo do Nepal anunciou na semana anterior, a morte de outros dois alpinistas, um queniano e um nepalês, também no Everest, a 8.849 metros de altitude.




credit: REUTERS


Na semana anterior, dois montanhistas mongóis, desaparecidos após chegarem ao cume, também foram encontrados mortos. 

Mais de 600 montanhistas, estrangeiros e nepaleses, chegaram ao cume do Everest desde Abril.

Todas as mortes relatadas ocorreram a mais de 8.000 metros acima do nível do mar, na chamada 'zona da morte', onde a falta de oxigénio aumenta o risco de o 'mal de altitude' e hipoxemia.






Entre os que escalam o pico mais elevado do Himalaia, este ano, está uma equipa singular, cujo objectivo não é chegar ao cume de 8.849 metros, mas sim, descer restos mortais dos que lá ficaram.

Arriscando a vida, já recuperaram cinco corpos congelados, incluindo um esqueleto, que depois levaram para Katmandu, capital do Nepal. Dois corpos já pré-identificados aguardam "testes detalhados" para confirmar as suas identidades, disse Rakesh Gurung, do Ministério do Turismo do Nepal. Alguns serão cremados.

A missão de limpar o Everest e os picos vizinhos do Lhotse e do Nuptse é difícil, perigosa e macabra.




Montanhistas em fila descendo o Monte Everest, no Nepal 

credit:  Lakpa SHERPA / AFP


"Devido aos efeitos das mudanças climáticas, os corpos e os resíduos tornam-se mais visíveis à medida que a camada de neve diminui", disse à AFP Aditya Karki, comandante do Exército nepalês que lidera uma equipa de 12 soldados e 18 montanhistas.

Mais de 300 pessoas morreram no Everest desde o início das expedições na década de 1920, oito delas nesta última temporada. Muitos corpos ficaram no local, alguns escondidos pela neve ou em fendas profundas.

Outros ainda são visíveis com os seus equipamentos de escalada e tornaram-se pontos de referência para os montanhistas que lhes deram apelidos como "Botas Verdes" ou "Bela Adormecida".


🙏RIP todos os alpinistas que tiveram o sonho de escalar o Mont Everest e cairam.







Everest's sacred slopes, climate change is thinning snow and ice, increasingly exposing the bodies of hundreds of mountaineers who died chasing their dream to summit the world's highest mountain.

Among those scaling the soaring Himalayan mountain this year was a team not aiming for the 8,849-metre (29,032-foot) peak, but risking their own lives to bring some of the corpses down.

Five as yet unnamed frozen bodies were retrieved -- including one that was just skeletal remains -- as part of Nepal's mountain clean-up campaign on Everest and adjoining peaks Lhotse and Nuptse.

It is a grim, tough and dangerous task.

Rescuers took hours to chip away the ice with axes, with the team sometimes using boiling water to release its frozen grip.

"Because of the effects of global warming, (the bodies and trash) are becoming more visible as the snow cover thins," said Aditya Karki, a major in Nepal's army, who led the team of 12 military personnel and 18 climbers.







More than 300 people have perished on the mountain since expeditions started in the 1920s, eight this season alone.

Many bodies remain. Some are hidden by snow or swallowed down deep crevasses.

Others, still in their colourful climbing gear, have become landmarks en route to the summit.

Nicknames include "Green Boots" and "Sleeping Beauty".

- 'Death zone' -

"There is a psychological effect," Karki told AFP.

"People believe that they are entering a divine space when they climb mountains, but if they see dead bodies on the way up, it can have a negative effect."




AFP/Courtesy OF PEMBA DORJE SHERPA

Many are inside the "death zone", where thin air and low oxygen levels raise the risk of altitude sickness.

Climbers must have insurance, but any rescue or recovery mission is fraught with danger.

One body, encased in ice up to its torso, took the climbers 11 hours to free.

The team had to use hot water to loosen it, prising it out with their axes.

"It is extremely difficult," said Tshiring Jangbu Sherpa, who led the body retrieval expedition.

"Getting the body out is one part, bringing it down is another challenge".

Sherpa said some of the bodies still appeared almost as they had at the moment of death -- dressed in full gear, along with their crampons and harnesses.

One seemed untouched, only missing a glove.







The retrieval of corpses at high altitudes is a controversial topic for the climbing community.

It costs thousands of dollars, and up to eight rescuers are needed for each body.

A body can weigh over 100 kilogrammes (220 pounds), and at high altitudes, a person's ability to carry heavy loads is severely affected.

- 'Turn into a graveyard' -

But Karki said the rescue effort was necessary.

"We have to bring them back as much as possible," he said. "If we keep leaving them behind, our mountains will turn into a graveyard."

Bodies are often wrapped in a bag then put on a plastic sled to drag down.

Sherpa said that bringing one body down from close to Lhotse's 8,516 metre peak -- the world's fourth-highest mountain -- had been among the hardest challenges so far.

"The body was frozen with hands and legs spread," he said.

"We had to carry it down to Camp Three as it was, and only then could it be moved to be put in a sled to be dragged."

Rakesh Gurung, from Nepal's tourism department, said two bodies had been preliminarily identified and authorities were awaiting "detailed tests" for the final confirmation.

The retrieved bodies are now in the capital Kathmandu, with those not identified likely to be eventually cremated.

- Missing mountaineers -

Despite the recovery efforts, the mountain still holds its secrets.

The body of George Mallory, the British climber who went missing during a 1924 attempt on the summit, was only found in 1999.

His climbing partner, Andrew Irvine, has never been found - nor has their camera, which could provide evidence of a successful summit that would rewrite mountaineering history.

The clean-up campaign, with a budget of over $600,000, also employed 171 Nepali guides and porters to bring back 11 tonnes of rubbish.

Fluorescent tents, discarded climbing equipment, empty gas canisters and even human excreta litter the well-trodden route to the summit.




        Ohotograph taken on June 12, 2024, workers segregate waste materials retrieved from Mount Everest to recycle in Kathmandu.                     credit: PRAKASH MATHEMA/AFP/GETTY


"The mountains have given us mountaineers so many opportunities," Sherpa said.

"I feel that we have to give back to them, we have to remove the trash and bodies to clean the mountains."

Today, expeditions are under pressure to remove the waste that they create, but historic rubbish remains.

"This year's trash might be brought back by the mountaineers," said Karki. "But who will bring the old ones?"


🙏RIP all climbers who had the dream to  climb the Mount Everest and died for them


Geração 'polar'


27-06.2024



Sources: Sapo/ Yahoo News / CBS News


Thursday, February 14, 2019

Degelo: Ursos polares esfomeados invadem aldeias russas





créditos DR/ via JN

Ursos polares invadem uma aldeia russa do Árctico, Novaya Zemlya, o que leva as autoridades russas a chamar um grupo de especialistas para a ilha a fim de sedar e retirar a dezenas de ursos polares que estão a amedrontar os habitantes da aldeia.

A decisão foi tomada depois de as autoridades do arquipélago de Nova Zembla, uma população a rondar três mil pessoas, terem pedido ajuda.

"Nunca houve uma invasão em massa de ursos polares como esta", (...) "Eles estão literalmente a perseguir várias pessoas", 

Zhigansha Musin (das autoridades locais)

Não há dúvida que deve ser assustador, ver entrar um urso polar na nossa casa. Mas o aquecimento global faz com que os animais procurem alimento fora do seu habitat para tentar sobreviver.






Os ursos polares passam grande parte do tempo no gelo, onde caçam e se alimentam de focas. Com o degelo no Árctico, os animais são obrigados a procurarem alimentos em outras zonas, passando pelo contacto com as populações humanas.
Foram avistados pelo menos 52 animais no arquipélago Belushya Guba, uma das zonas mais povoadas da região. 
"Os habitantes estão assustados e com medo de saírem de casa. Os pais não deixam os filhos irem à escola". 
Alexander Minayev
Por este motivo, foi declarado o estado de emergência na região.


Instagram/ via RTP


Nas redes sociais foram publicados vídeos e fotografias em que se pode ver os ursos a entrarem em casas e próximos das populações. 
A Rússia classificou os ursos polares como sendo uma espécie em risco e disparar contra eles é proibido. 
No entanto, as autoridades defendem que o abate destes animais pode vir a ser a solução, caso as tentativas de os retirar do local fracassem. 

Esperemos que isso não aconteça! Os ursos polares e outros animais que estão a mudar seus hábitos alimentares numa luta pela sobrevivência, não têm culpa das atrocidades que temos cometido contra o nosso Planeta.



créditos: via Instagram

Russian environmental authorities have deployed a team of specialists to a remote Arctic region to sedate and remove dozens of hungry polar bears that have besieged the people living there.


The move came after officials in the Novaya Zemlya archipelago, with a population of about 3,000 people, appealed for help.


“There’s never been such a mass invasion of polar bears,” said Zhigansha Musin, the head of the local administration. “They have literally been chasing people.”





Other footage shows the polar bears feeding on rubbish at a local dump. Attempts to scare off the polar bears using car horns and dogs have all failed, the Tass news agency said. 





Instagram/ via JN

Russia classes polar bears as an endangered species and shooting them is prohibited by law. Officials warn, however, that a cull may be necessary to ensure the safety of the local population, if attempts to remove the animals fail. 


In 2016, five Russian scientists were besieged by polar bears for nearly two weeks at a remote weather station on Troynoy Island, east of Novaya Zemlya. Read more here

We hope that Russian  environmental authorities don't kill the polar bears. They must have different solution. Polar bears are trying to survive.

Geração 'explorer'

14.02.2019


Licença Creative Commons

fontes: JN Ambiente/ The Guardian Environment

Sunday, December 11, 2016

NASA : Que quantidade de gelo perdeu o Árctico?






credits: NASA/SVS

An animation of the annual Arctic sea ice minimum with a graph overlay showing the area of the minimum sea ice in millions of square kilometers.

SVS animation

A NASA, na sua mais recente publicação no Scientific Vizualization Studio, mostra, através de vídeos e gráficos, como o Árctico tem sofrido com as alterações climáticas

Vários milhões de quilómetros quadrados de gelo perene foram perdidos em 32 anos, isto é de 1984 a 2016.





screenshot NASA/SVS via Tek.sapo


Apesar da teoria que defende a influência do Homem no processo acelerado do de degelo do Árctico ser, regra geral, aceite, existem cépticos nas franjas mais e menos intelectuais da sociedade que não acreditam na ideia. 
SVS animation
No entanto, com ou sem mão dos homens, seja ela directa ou indirecta, a verdade é observável. A camada perene de gelo que cobre a região é cada vez menor.


credits: NASA/SVS
A still image of the annual minimum sea ice age in 1984 with the graph overlay.
SVS animation
Ao contrário do restante, esta parte é assim denominada por conseguir manter-se mesmo durante as estações de maior calor que provocam o derretimento de muitas outras áreas geladas, podendo sobreviver intacta durante mais de nove anos e chegar a uma grossura máxima de quatro metros. 
O aquecimento global e a consequente subida de temperaturas está a reduzir a quantidade de gelo perene que se acumula nas calotas polares. 
Para ter acesso aos diferentes vídeos, ver aqui
Incrível! Ficamos com a certeza do que se está a passar no Árctico e até que ponto é vital preservarmos



credits: NASA/SVS


A still image of the annual minimum sea ice age in 2016 with the graph overlay. The green memory bars portray the maximum annual value for each age range seen since January 1, 1984 on the day of the annual minimum.

SVS animation

One significant change in the Arctic region in recent years has been the rapid decline in perennial sea ice. Perennial sea ice, also known as multi-year ice, is the portion of the sea ice that survives the summer melt season. Perennial ice may have a life-span of nine years or more and represents the thickest component of the sea ice; perennial ice can grow up to four meters thick. By contrast, first year ice that grows during a single winter is generally at most two meters thick.
Watch the animation on SVS (NASA) here
This animation shows the annual change in sea ice age at each year's minimum extent. Younger sea ice, or first-year ice, is shown in a dark shade of blue while the ice that is four years old or older is shown as white. 



credits: NASA/SVS
A bar graph displayed in the lower right corner quantifies the area covered by the ice in each age category on the day of the annual minimum. In addition, memory bars shown in green portray the maximum annual value for each age range seen since January 1, 1984 on the day of the annual minimum.
No doubt! We must change our behaviour. We can't continue to ignore the real problem. Raising our voices to help the Arctic.

Geração 'explorer' 
11.12.2016
Creative Commons License
References:
Tek/ Site do dia 
NASA/ Scientific Vizualisation Studio


Friday, August 12, 2016

Pausa férias : O que se passa no Árctico reflecte-se no mundo






Credits: Greenpeace


Como seriam alguns dos monumentos e lugares mais emblemáticos do planeta se o gelo do Árctico derretesse? 

A ONG ambientalista Greenpeace criou cenários futuros, para tentar responder a essa pergunta, um vídeo que dramatiza alguns dos efeitos do degelo. Ver aqui o vídeo (versão espanhola). Imagens que podem tornar-se realidade se não se tomarem medidas urgentes para atacar o aquecimento global.





Big Ben & Rio Tamisa
creditos: Greenpeace




Big Ben & Rio Tamisa
creditos: Greenpeace simulation

A Torre de Ouro de Sevilha passaria a ter vista para um desolador terreno seco e o Big Ben de Londres não estaria tão próximo do rio Tamisa, que seria uma sombra do que é hoje, em termos de caudal.




Muralha da China
creditos: Greenpeace 



Muralha da China
creditos: Greenpeace simulation

Os hotéis da marginal de Miami seriam fustigados pelas ondas e a Grande Muralha da China teria uma envolvente bem diferente daquela a que estamos habituados a ver.


Miami
creditos: Greenpeace




Miami
creditos: Greenpeace simulation
http://imagenes-cdn.farodevigo.es/

O vídeo faz parte integrante do relatório O que acontece no Árctico afecta-nos a todos, que sensibiliza para a importância deste continente gelado se o gelo derreter completamente. Assim refere o jornal espanhol ABC que divulga a versão espanhola do vídeo (acima).


Ludovico Einaudi toca 'Elegia pelo Árctico' no Árctico
credits: Greenpeace
credits: pedro armestre / greenpeace

Foi também para a campanha Vozes pelo Árctico da associação ambientalista Greenpeace que o pianista italiano Ludovico Einaudi compôs uma peça dedicada a essa campanha, a que chamou “Elegia pelo Ártico” e que tocou numa plataforma no gelo Ártico.

É tempo de fazer uma curta pausa, como já é usual. As férias escolares começaram para nós, final Julho. Prometemos voltar em Setembro!

Aprendam a apreciar a beleza do nosso Planeta e dos animais que nos fazem companhia. Sim, porque a Terra não é só dos Homens. Os animais sempre a habitaram, e por culpa de alguns de nós, muitas espécies a nível mundial estão em risco de extinção. Cuidem da Terra!

Ah! Não esqueçam de visitar o nosso blog verde Geração Verde.



Artic
credits: Greenpeace/ ABC (Spanish version)
The Arctic is a remote wilderness that is home to some of the most iconic, and threatened, wildlife on Earth, including polar bears, narwhal and Arctic foxes. Few of us have been lucky enough to explore the expanses of sea ice, glaciers or ice-sheets, yet we are inextricably linked to this vast region and it plays an integral role in our global climate system. Rising temperatures in the Arctic region appear to be influencing weather systems in other areas of the world, though the details of the complex processes involved are unclear.




credits: Greenpeace

The Arctic region is warming at more than twice the rate of other areas of the world in a phenomenon known as 'Arctic amplification'. The sea ice is melting earlier and the total area of summer sea ice has, on average, fallen markedly over the last 30 years. The receding sea ice results in more heat being exchanged between the ocean and the atmosphere. The whole Arctic region has become visibly darker with a lack of ice and snow, and this has affected the surface albedo (reflective properties) so that more energy is absorbed into the environment. An unstoppable positive feedback mechanism may have been set in motion that will further contribute to climate change across the globe.




credits: Greenpeace

A series of unprecedented weather extremes have been recorded throughout the last decade–'super-storms', droughts, heat waves, floods and record breaking snowy winters. Climate modelling suggests that these extreme weather events will become even more common in the future, causing heavy human and economic losses. Already many lives have been lost, homes flooded, grain harvests spoiled and forests burned with grave consequences for biological systems and human livelihoods. Research is still in its infancy and scientists are trying to understand better how the complex atmospheric processes of the poles are influencing mid-latitude weather patterns. There is still much debate. However, there seems no doubt that warming of the Arctic region is a major contributory factor. Read more here



Ludovico Einaudi plays Elegy for the Arctic
credits: Greenpeace
credits: pedro armestre / greenpeace

The composer Ludovico Einaudi has turned eight million voices into music, Elegy for the Arctic, specially composed to help protect the Arctic.

"As he performed this piece for the first time - in front of a magnificent surging glacier - the music echoed across the ice, a moment that will remain in our minds forever."

Through his music, acclaimed Italian composer and pianist Ludovico Einaudi has added his voice to those of eight million people from across the world demanding protection for the Arctic. Einaudi performed one of his own compositions on a floating platform in the middle of the Ocean, against the backdrop of the Wahlenbergbreen glacier in Svalbard, Norway. 

What can you do?

"Add your voice! We are just days away from a decision that could mark the real beginning of the Arctic Sanctuary. What is your reason for protecting the Arctic? Write it here and we'll make sure it reaches the Arctic."

Greenpeace campaign 'The Arctic Needs Your Voice' 


We hope you are enjoying our blog Geração Polar! It's Summer breack. Please care the Earth. Our planet needs all of us.

We will be back in September, as usual. See you soon.

By the way, don't forget to visit our green blog Geração Verde.


Geração 'explorer'

12.08.2016
Creative Commons License

References:

Greenpeace/News
Observador/ Ciência
Faro de Vigo/ Sociedad