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Climate change isn’t just making cyclones worse, it’s making the floods they cause worse too – new research

Rising populations and a warming climate mean storm surges from super cyclones are likely to affect increasing numbers of vulnerable people.

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People take refuge on a sports ground following flooding caused by Cyclone Idai in Mozambique. DFID/Flickr, CC BY-SA

Super cyclones, known as hurricanes or typhoons in different parts of the world, are among the most destructive weather events on our planet.

Although wind speeds within these storms can reach 270 km/h, the largest loss of life comes from the flooding they cause – known as a “storm surge” – when sea water is pushed onto the coast. Climate change is predicted to worsen these floods, swelling cyclone clouds with more water and driving rising sea levels that allow storm surges to be blown further inland.

In May 2020, Super Cyclone Amphan hit the India-Bangladesh border, bringing heavy rainfall and strong winds and affecting more than 13 million citizens. The cyclone also caused storm surges of 2-4 metres, flooding coastal regions in the Bay of Bengal.

While over the ocean, this category five storm – that’s a storm’s highest possible rating – became the strongest cyclone to have formed in the Bay of Bengal since 1999, reaching wind speeds of up to 260 km/h. Although it weakened to a category two storm following landfall, it remained the strongest cyclone to hit the Ganges Delta since 2007.

Amphan had severe consequences for people, agriculture, the local economy and the environment. It tragically resulted in more than 120 deaths, as well as damaging or destroying homes and power grids: leaving millions without electricity or communication in the midst of an ongoing pandemic.

Relief and aid efforts were hampered by flood damage to roads and bridges, as well as by coronavirus restrictions. Large areas of crops including rice, sesame and mangos were damaged, and fertile soils were either washed away or contaminated by saline sea water. Overall, Super Cyclone Amphan was the costliest event ever recorded in the North Indian Ocean, resulting in over $13 billion (£10 billion) of damage.

Two people assess a tree that has fallen across a road
In Kolkata, India, Super Cyclone Amphan caused widespread damage. Indrajit Das/Wikimedia

In a recent study led by the University of Bristol and drawing on research from Bangladesh and France, we’ve investigated how the effects of storm surges like that caused by Amphan on the populations of India and Bangladesh might change under different future climate and population scenarios.

Amphan: Mark II

Rising sea levels – thanks largely to melting glaciers and ice sheets – appear to be behind the greatest uptick in future risk from cyclone flooding, since they allow storm surges to reach further inland. It’s therefore key to understand and predict how higher sea levels might exacerbate storm-driven flooding, in order to minimise loss and damage in coastal regions.


Read more: Storm surge: this misunderstood threat can be every bit as deadly as a tsunami


Our research used climate models from CMIP6, the latest in a series of projects aiming to improve our understanding of climate by comparing simulations produced by different modelling groups around the world. First we modelled future sea-level rise according to different future emissions scenarios, then we added that data to storm surge estimates taken from a model of Super Cyclone Amphan.

We ran three scenarios: a low emission scenario, a business-as-usual scenario and a high emission scenario. And in addition to modelling sea-level rise, we also estimated future populations across India and Bangladesh to assess how many more people storm surges could affect. In most cases, we found that populations are likely to rise: especially in urban areas.

Our findings were clear: exposure to flooding from cyclone storm surges is extremely likely to increase. In India, exposure increase ranged from 50-90% for the lowest emission scenario, to a 250% increase for the highest emission scenario. In Bangladesh, we found a 0-20% exposure increase for the lowest emission scenario and a 60-70% increase for the highest emission scenario. The difference in exposure between the two countries is mostly due to declining coastal populations as a result of urban migration inland.

Imagine we’re now in 2100. Even in a scenario where we’ve managed to keep global emissions relatively low, the local population exposed to storm surge flooding from an event like Amphan will have jumped by ~350,000. Compare this to a high emission scenario, where an extra 1.35 million people will now be exposed to flooding. And for flood depths of over one metre – a depth that poses immediate danger to life – almost half a million more people will be exposed to storm surge flooding in a high emission scenario, compared to a low emission scenario.

A composite satellite image of a large white cyclone
A satellite image shows Amphan approaching the coasts of India and Bangladesh. Pierre Markuse/Wikimedia

This research provides yet more support for rapidly and permanently reducing our greenhouse gas emissions to keep global warming at 1.5°C above pre-industrial levels.


Read more: Climate breakdown: even if we miss the 1.5°C target we must still fight to prevent every single increment of warming


Although we’ve focused on storm surge flooding, other cyclone-related hazards are also projected to worsen, including deadly heatwaves following cyclones hitting land. And in the case of Amphan, interplay between climate change and coronavirus likely made the situation for people on the ground far worse. As the world warms, we mustn’t avoid the reality that pandemics and other climate-related crises are only forecast to increase.

Urgent action on emissions is vital to protect highly climate-vulnerable countries from the fatal effects of extreme weather. Amphan Mark II need not be as destructive as we’ve projected if the world’s governments act now to meet Paris agreement climate goals.

Laurence Hawker receives funding from Natural Environment Research Council (NERC).

Dann Mitchell receives funding from NERC.

Natalie Lord received funding from NERC.

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Coronavirus may be linked to cases of severe hepatitis in children

A chain of events possibly triggered by unrecognized infection with the SARS-CoV-2 coronavirus could be causing the mysterious cases of severe hepatitis…

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Coronavirus may be linked to cases of severe hepatitis in children

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(Reuters) – The following is a summary of some recent studies on COVID-19. They include research that warrants further study to corroborate the findings and that has yet to be certified by peer review.

SARS-CoV-2 could be at root of mysterious hepatitis in kids

A chain of events possibly triggered by unrecognized infection with the SARS-CoV-2 coronavirus could be causing the mysterious cases of severe hepatitis reported in hundreds of young children around the world, researchers suggest.

Children with COVID-19 are at significantly increased risk for liver dysfunction afterward, according to a report posted on Saturday on medRxiv ahead of peer review. But most of the children with acute hepatitis – which is generally rare in that age group – do not report a previous SARS-CoV-2 infection. Instead, the majority have been found to be infected with an adenovirus called 41F, which is not known to attack the liver. It is possible that the affected children, many of whom are too young to be vaccinated, may have had mild or asymptomatic COVID infections that went unnoticed, a separate team of researchers suggest in The Lancet Gastroenterology & Hepatology. If that were true, they theorize, then lingering particles of the coronavirus in the gastrointestinal tract in these children could be priming the immune system to over-react to adenovirus-41F with high amounts of inflammatory proteins that ultimately damage the liver.

A firefighter from the Marins-Pompiers of Marseille (Marseille Naval Fire Battalion) administers a nasal swab to a child at a testing site for coronavirus disease (COVID-19) in Marseille, France, September 17, 2020. REUTERS/Eric Gaillard

“We suggest that children with acute hepatitis be investigated for SARS-CoV-2 persistence in stool” and for other signals that the liver damage is happening because the spike protein of the coronavirus is a “superantigen” that over-sensitizes the immune system, they said.

Face-down position unhelpful for awake patients

For hospitalized COVID-19 patients who are breathing on their own but with supplemental oxygen, lying face down might not help prevent them from eventually needing mechanical ventilation, according to a new study.

In the study, 400 patients were randomly assigned to usual care or to standard care plus intermittently lying on their stomach, a position known to improve the course of illness in sedated patients on mechanical ventilators. Over the next 30 days, 34.1% in the prone-positioning group and 40.5% in the usual-care group needed to be intubated and put on a ventilator, a difference that was not statistically significant. There might have been a reduction in the risk for intubation with prone positioning among some of the patients, researchers said on Monday in JAMA, but they could not confirm it statistically from their data. The average duration of prone positioning per day was roughly five hours, less than the target of eight to 10 hours per day.

“Long hours of awake prone positioning are challenging and highly influenced by patient comfort and preference,” the researchers said. “The most common reason for interruption of prone positioning was patient request, which might have been related to overall subjective improvement or related to discomfort from prone positioning.”

Click for a Reuters graphic on vaccines in development.

Reporting by Nancy Lapid and Megan Brooks; Editing by Bill Berkrot

Our Standards: The Thomson Reuters Trust Principles.

 

Reuters source:

https://www.reuters.com/business/healthcare-pharmaceuticals/coronavirus-may-be-linked-cases-severe-hepatitis-children-2022-05-16

 

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The Battle For Control Of Your Mind

The Battle For Control Of Your Mind

Authored by Aaron Kheriaty via The Brownstone Institute

In his classic dystopian novel 1984, George…

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The Battle For Control Of Your Mind

Authored by Aaron Kheriaty via The Brownstone Institute

In his classic dystopian novel 1984, George Orwell famously wrote, “If you want a picture of the future, imagine a boot stamping on a human face—for ever.” This striking image served as a potent symbol for totalitarianism in the 20th Century. But as Caylan Ford recently observed, with the advent of digital health passports in the emerging biomedical security state, the new symbol of totalitarian repression is “not a boot, but an algorithm in the cloud: emotionless, impervious to appeal, silently shaping the biomass.”

These new digital surveillance and control mechanisms will be no less oppressive for being virtual rather than physical. Contact tracing apps, for example, have proliferated with at least 120 different apps in used in 71 different states, and 60 other digital contact-tracing measures have been used across 38 countries. There is currently no evidence that contact tracing apps or other methods of digital surveillance have helped to slow the spread of covid; but as with so many of our pandemic policies, this does not seem to have deterred their use.

Other advanced technologies were deployed in what one writer has called, with a nod to Orwell, “the stomp reflex,” to describe governments’ propensity to abuse emergency powers. Twenty-two countries used surveillance drones to monitor their populations for covid rule-breakers, others deployed facial recognition technologies, twenty-eight countries used internet censorship and thirteen countries resorted to internet shutdowns to manage populations during covid. A total of thirty-two countries have used militaries or military ordnances to enforce rules, which has included casualties. In Angola, for example, police shot and killed several citizens while imposing a lockdown.

Orwell explored the power of language to shape our thinking, including the power of sloppy or degraded language to distort thought. He articulated these concerns not only in his novels Animal Farm and 1984 but in his classic essay, “Politics and the English Language,” where he argues that “if thought corrupts language, language can also corrupt thought.”

The totalitarian regime depicted in 1984 requires citizens to communicate in Newspeak, a carefully controlled language of simplified grammar and restricted vocabulary designed to limit the individual’s ability to think or articulate subversive concepts such as personal identity, self-expression, and free will. With this bastardization of language, complete thoughts are reduced to simple terms conveying only simplistic meaning.  

Newspeak eliminates the possibility of nuance, rendering impossible consideration and communication of shades of meaning. The Party also intends with Newspeak’s short words to make speech physically automatic and thereby make speech largely unconscious, which further diminishes the possibility of genuinely critical thought.

In the novel, character Syme discusses his editorial work on the latest edition of the Newspeak Dictionary:

By 2050—earlier, probably—all real knowledge of Oldspeak [standard English] will have disappeared. The whole literature of the past will have been destroyed. Chaucer, Shakespeare, Milton, Byron—they’ll exist only in Newspeak versions, not merely changed into something different, but actually contradictory of what they used to be. Even the literature of The Party will change. Even the slogans will change. How could you have a slogan like Freedom is Slavery when the concept of freedom has been abolished? The whole climate of thought will be different. In fact, there will be no thought, as we understand it now. Orthodoxy means not thinking—not needing to think. Orthodoxy is unconsciousness.

Several terms of disparagement were repeatedly deployed during the pandemic, phrases whose only function was to halt the possibility of critical thought. These included, among others, ‘covid denier,’ ‘anti-vax,’ and ‘conspiracy theorist’. Some commentators will doubtless mischaracterize this book, and particularly this chapter, using these and similar terms—ready-made shortcuts that save critics the trouble of reading the book or critically engaging my evidence or arguments.

A brief comment on each of these may be helpful in illustrating how they function.

The first term, ‘covid denier,’ requires little attention. Those who sling this charge at any critic of our pandemic response recklessly equate covid with the Holocaust, which suggests that antisemitism continues to infect discourse on both the right and the left. We need not detain ourselves with more commentary on this phrase.

The epithet ‘anti-vax,’ deployed to characterize anyone who raises questions about the mass vaccination campaign or the safety and efficacy of covid vaccines, functions similarly as a conversation stopper rather than an accurately descriptive label. When people ask me whether I am anti-vax for challenging vaccine mandates I can only respond that the question makes about as much sense to me as the question, “Dr. Kheriaty, are you ‘pro-medication’ or ‘anti-medication’?” The answer is obviously contingent and nuanced: which medication, for which patient or patient population, under what circumstances, and for what indications? There is clearly no such thing as a medication, or a vaccine for that matter, that’s always good for everyone in every circumstance and all the time.

Regarding the term “conspiracy theorist,” Agamben notes that its indiscriminate deployment “demonstrates a surprising historical ignorance.” For anyone familiar with history knows that the stories historians recount retrace and reconstruct the actions of individuals, groups, and factions working in common purpose to achieve their goals using all available means. He mentions three examples from among thousands in the historical record.

In 415 B.C. Alcibiades deployed his influence and money to convince the Athenians to embark on an expedition to Sicily, a venture that turned out disastrously and marked the end of Athenian supremacy. In retaliation, Alcibiades enemies hired false witnesses and conspired against him to condemn him to death. In 1799 Napoleon Bonaparte violated his oath of fidelity to the Republic’s Constitution, overthrowing the directory in a coup, assumed full powers, and ending the Revolution. Days prior, he had met with co-conspirators to fine-tune their strategy against the anticipated opposition of the Council of Five Hundred.

Closer to our own day, he mentions the March on Rome by 25,000 Italian fascists in October 1922. Leading up to this even, Mussolini prepared the march with three collaborators, initiated contacts with the Prime Minister and powerful figures from the business world (some even maintain that Mussolini secretly met with the King to explore possible allegiances). The fascists rehearsed their occupation of Rome by a military occupation of Ancona two months prior.

Countless other examples, from the murder of Julius Caesar to the Bolshevik revolution, will occur to any student of history. In all these cases, individuals gathering in groups or parties to strategize goals and tactics, anticipate obstacles, then act resolutely to achieve their aims. Agamben acknowledges that this does not mean it is always necessary to aver to ‘conspiracies’ to explain historical events. “But anyone who labelled a historical who tried to reconstruct in detail the plots that triggered such events as a ‘conspiracy theorist’ would most definitely be demonstrating their own ignorance, if not idiocy.”

Anyone who mentioned “The Great Reset” in 2019 was accused of buying into a conspiracy theory—that is, until World Economic Forum founder and executive chairman Klaus Schwab published a book in 2020 laying out the WEF agenda with the helpful title,Covid-19: The Great Reset. Following new revelations about the lab leak hypothesis, U.S. funding of gain-of-function research at the Wuhan Institute of Virology, vaccine safety issues willfully suppressed, and coordinated media censorship and government smear campaigns against dissident voices, it seems the only difference between a conspiracy theory and credible news was about six months.

*  *  *

Originally posted at 'Human Flourishing' Substack.

Tyler Durden Mon, 05/16/2022 - 23:45

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World-first study reveals why people with COPD are more susceptible to COVID-19

Researchers from the Centenary Institute and the University of Technology Sydney have published the first study showing why people with chronic obstructive…

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Researchers from the Centenary Institute and the University of Technology Sydney have published the first study showing why people with chronic obstructive pulmonary disease (COPD) are at higher risk of developing severe COVID-19.

Credit: Centenary Institute

Researchers from the Centenary Institute and the University of Technology Sydney have published the first study showing why people with chronic obstructive pulmonary disease (COPD) are at higher risk of developing severe COVID-19.

The findings, reported in the American Journal of Respiratory and Critical Care Medicine, could lead to the development of new therapeutic interventions that reduce COVID-19 infection in COPD patients.

An inflammatory lung condition, COPD causes airway blockage and makes it difficult to breathe. It affects around 400 million people globally. The increased susceptibility to COVID-19 of COPD patients is still to be fully understood.

In the study, the researchers infected differentiated airway cells from COPD patients and healthy people with SARS-CoV-2 (the virus that causes COVID-19).

The researchers found that the COPD airway cells had 24-fold greater infection with SARS-CoV-2 than the healthy cells.

“We examined the genetic information of infected cells through advanced single cell RNA-sequencing analysis,” said lead author of the study, Dr Matt Johansen, from the Centenary UTS Centre for Inflammation.

“Seven days after SARS-CoV-2 infection, there was a 24-fold increase of viral load in the COPD patient airway cells compared to the cells taken from healthy individuals.”

Significantly, the team found that the infected COPD cells had increased levels of transmembrane protease serine 2 (TMPRSS2) and cathepsin B (CTSB). Both are enzymes that SARS-CoV-2 uses to enter into the host cell.

“These two enzymes are increased in COPD patients and favour greater SARS-CoV-2 infection compared to healthy people. Simply put, easier and increased cell infection makes it far more likely that individuals with COPD will have more severe disease outcomes,” said Dr Johansen.

Other results from the study showed additional reasons for COPD patient susceptibility to severe COVID-19.

Key anti-viral proteins (interferons) that protect against infection were largely blunted in the COPD patient airway cells. This was a likely trigger in causing increased viral production in COPD patients.

Dr Johansen said that infected COPD patient airway cells also had higher levels of pro-inflammatory cytokines, which are linked to more severe COVID-19 and COPD outcomes.

“COPD is an inflammatory disease with patients having increased inflammation at baseline compared to healthy people. It’s highly likely that SARS-CoV-2 exacerbates this existing high inflammation level which leads to even poorer outcomes,” he said.

Initial laboratory drug testing by the researchers, to inhibit the enzymes TMPRSS2 and CTSB, and to target the high inflammation levels, successfully and substantially reduced SARS-CoV-2 viral levels in COPD patient cells, ultimately confirming the study’s results.

“Collectively, these findings have allowed us to understand the mechanisms of increased COVID-19 susceptibility in COPD patients,” said Professor Phil Hansbro, the study’s senior author and Director of the Centenary UTS Centre for Inflammation.

“We believe that new drug treatments targeting relevant enzymes and pro-inflammatory responses in SARS-CoV-2 infection could have excellent therapeutic potential in reducing the severity of COVID-19 in patients with COPD.”

Professor Hansbro said the research was critical with hundreds of millions of people affected by COPD globally and with COVID-19 likely to be around for many years to come.

[ENDS]

Publication:

Increased SARS-CoV-2 Infection, Protease and Inflammatory Responses in COPD Primary Bronchial Epithelial Cells Defined with Single Cell RNA-Sequencing.

https://www.atsjournals.org/doi/10.1164/rccm.202108-1901OC

Images:

Dr Matt Johansen: https://drive.google.com/file/d/1Wc5WxHcS1fSWE68Q7xu8jT53Dki2ZBo4/

 

Professor Phil Hansbro:

https://drive.google.com/file/d/1GaHOyCjXfSb3hsE_bS-g2Cxs81dEhL4G/

 

For all media and interview enquiries, please contact

Tony Crawshaw, Media and Communications Manager, Centenary Institute on 0402 770 403 or email: t.crawshaw@centenary.org.au

 

About the Centenary Institute

The Centenary Institute is a world-leading independent medical research institute, closely affiliated to the University of Sydney and the Royal Prince Alfred Hospital. Our research focuses on three key areas: cancer, inflammation and cardiovascular disease. Our strength lies in uncovering disease mechanisms and applying this knowledge to improve diagnostics and treatments for patients.

For more information about the Centenary Institute, visit centenary.org.au

 

About the University of Technology Sydney (UTS)

The University of Technology Sydney (UTS), located in central Sydney, is one of

Australia’s leading universities of technology. It is known for fusing innovation, creativity

and technology in its teaching and research and for being an industry-focused university.

For more information go to uts.edu.au


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