Posted by: 90sRetroFan
« on: June 02, 2023, 04:52:14 pm »Quote
Humans Have Exceeded Seven of the Nine 'Safe Limits'
How many would have been exceeded in absence of Western civilization?
Humans Have Exceeded Seven of the Nine 'Safe Limits'
Makers of PFAS, a class of chemicals used in everything from cookware to food containers and makeup, had evidence the substances were toxic as early as the 1970s and obscured the danger, according to a new study based on industry archives held at the University of California.
Governments in Canada and the U.S. are now cracking down on per- and polyfluoroalkyl substances (PFAS), a class of more than 9,000 human-made chemicals produced since the 1940s. They have unique properties that make them heat-resistant, oil- and water-repellent and friction-resistant, and are found in products from cosmetics and take-out boxes to non-stick cookware and fire suppressants.
PFAS are called forever chemicals because they're so persistent. They've been found in water bodies all over Canada and the U.S.
Because they're hard to break down, contamination from the long-lived substances — sometimes called "forever chemicals" — is extensive all over North America.
"It's really very sad, actually, how people were harmed by this chemical while the industry knew — had documents that showed they knew — it was toxic," said Tracey Woodruff, professor of reproductive health and the environment at the University of California, San Francisco
The internal industry documents came from the discovery process and were related to DuPont and 3M, two major PFAS manufacturers.
Woodruff and her team's analysis found that the companies had evidence by the 1970s —decades before public health and government authorities turned their attention to the chemicals — that some PFAS were toxic to humans, based on lab reports and health impacts on employees, but downplayed those impacts in public messaging or obscured what they had found.
the chemicals can enter our blood and bodies from non-stick Teflon pans, fire retardant, food wrappers, cosmetics, and even the environment. In studies, they have been found in the bodies of most people tested in the U.S., Canada and other countries, and have been detected in major bodies of water.
Today, PFAS have been linked to liver problems, pregnancy issues, immune problems and some cancers. These health effects have mostly been observed in animal testing; the exact impact on human health remains unclear and is difficult to study as it would involve exposing people to suspected toxins.
-As early as 1970, a DuPont memo said PFOA, a type of PFAS, was "highly toxic when inhaled and moderately toxic when ingested."
-In 1980, DuPont and 3M learned that two pregnant employees involved in PFOA manufacturing had given birth to children with birth defects. Neither company released that information or told employees.
-In 1981, DuPont workers showed elevated levels of liver enzymes.
-In 1994, 3M knew of links of PFAS to prostate cancer that it shared with DuPont, a competitor.
Humans have crossed seven of the nine "safe limits" that allow for human life on Earth, according to a new study.https://weather.com/en-IN/india/climate-change/news/2023-06-02-humanity-exceeded-most-safe-limits-for-survival-on-earth-study
In 2009, a team of global scientists introduced the concept of planetary boundaries, which humans should not cross if they want the Earth to remain hospitable to civilisation.
They are climate change, biosphere integrity, land-system change, freshwater use, biogeochemical flows (nitrogen and phosphorus), ocean acidification, atmospheric aerosol pollution, stratospheric ozone depletion, and release of novel chemicals (including heavy metals, radioactive materials, plastics, and more).
In a new report published in the journal Nature, scientists found that seven of these thresholds, including climate change, biodiversity, land-system change, and biogeochemical flows (nitrogen and phosphorus imbalance), have been crossed.
The study, developed by an international science commission engaging more than 40 researchers from across the globe, showed that humans are taking colossal risks with the future of civilisation and everything that lives on Earth.
For example, human activities are altering water flows, excessive amounts of nutrients are released into waterways from fertiliser use, and limited natural areas are left.
The world has already passed the safe and just climate boundary, which is set at 1 degree Celsius above pre-industrial temperature levels, as tens of millions of people are already harmed by the current level of climate change.
Further, the rising temperatures are melting away large Greenland ice sheets and increasing deforestation in the Amazon forest, all likely to lift oceans by metres, releasing billions of tonnes of carbon dioxide and methane.
"Our results are quite concerning. This means that unless a timely transformation occurs, it is most likely that irreversible tipping points and widespread impacts on human well-being will be unavoidable," said lead author Prof. Johan Rockstrom, Earth Commission Co-Chair.
"Avoiding that scenario is crucial if we want to secure a safe and just future for current and future generations," added Rockstrom, who is also Director of the Potsdam Institute for Climate Impact Research in Germany.
The scientists also delivered the first quantification of safe and just Earth system boundaries on a global and local level for several biophysical processes and systems that regulate the state of the Earth system.
"The Earth system is in danger; many tipping elements are about to cross their tipping points," said co-author Dahe Qin, director of the Chinese Academy of Science's influential Academic Committee.
The scientists called for setting just targets to prevent significant harm and guarantee access to resources to people and for as well as just transformations to achieve those targets.
Internal documents from chemical giant Syngenta reveal tactics to sponsor sympathetic scientific papers and mislead regulators about unfavorable research
The global chemical giant Syngenta has sought to secretly influence scientific research regarding links between its top-selling weedkiller and Parkinson’s, internal corporate documents show.Entire article: https://www.theguardian.com/us-news/2023/jun/02/paraquat-parkinsons-disease-research-syngenta-weedkiller
While numerous independent researchers have determined that the weedkiller, paraquat, can cause neurological changes that are hallmarks of Parkinson’s, Syngenta has always maintained that the evidence linking paraquat to Parkinson’s disease is “fragmentary” and “inconclusive”.
But the scientific record they point to as proof of paraquat’s safety is the same one that Syngenta officials, scientists and lawyers in the US and the UK have worked over decades to create and at times, covertly manipulate, according to the trove of internal Syngenta files reviewed by the Guardian and the New Lede.
The files reveal an array of tactics, including enlisting a prominent UK scientist and other outside researchers who authored scientific literature that did not disclose any involvement with Syngenta; misleading regulators about the existence of unfavorable research conducted by its own scientists; and engaging lawyers to review and suggest edits for scientific reports in ways that downplayed worrisome findings...
Paraquat is outlawed in the EU, UK, Switzerland and China as a growing chorus of US advocacy groups demand the EPA change its positionhttps://www.theguardian.com/us-news/2022/oct/28/paraquat-weedkiller-epa-ban
A new study finds a chemical formed when we digest a widely used sweetener is "genotoxic," meaning it breaks up DNA. The chemical is also found in trace amounts in the sweetener itself, and the finding raises questions about how the sweetener may contribute to health problems.Entire article: https://www.news-medical.net/news/20230531/Chemical-found-in-widely-used-sweetener-breaks-up-DNA.aspx
At issue is sucralose, a widely used artificial sweetener. Previous work by the same research team established that several fat-soluble compounds are produced in the gut after sucralose ingestion. One of these compounds is sucralose-6-acetate...
Researchers set out to clearly quantify connection between companies, emissions and climate events
As fires blaze in Alberta, Saskatchewan and B.C., new research has drawn a direct and measurable link between carbon emissions traced back to the world's major fossil fuel producers and the increase in extreme wildfires across western Canada and the United States.
The peer-reviewed study, published last week in the journal Environmental Research Letters, found that 37 per cent of the total burned forest area in Western Canada and the United States between 1986-2021 can be traced back to 88 major fossil fuel producers and cement manufacturers.
"What we found is that the emissions from these companies have dramatically increased wildfire activity," said Carly Phillips, co-author on the study and a researcher at the Science Hub for Climate Litigation at the Union of Concerned Scientists.
The findings build on previous studies that have quantified the contribution of those same 88 companies to the increase in global temperatures, and others that have shown how a climate-driven "vapour pressure deficit" (VPD) — a measure of the atmosphere's drying power — has contributed to the increased area of forest burned in Western Canada and the U.S.
Using modelling data, researchers were able to determine that emissions traced back to those 88 companies resulted in an additional 80,000 kilometres squared being burned. That's an area larger than the size of Ireland.
"I think we're increasingly seeing scientists make stronger statements, which we need to be doing — stronger statements about the fact that, yes, these changes in climate are human-caused and they are driving these massive catastrophes that we're seeing around the world."
Phillips said drawing those links was part of her motivation, especially given that recent research and investigations have found oil companies knew about the threat of climate change decades ago but downplayed the dangers.
Humans are already losing shut-eye in warm environments, especially at the beginning of the night. Models predict a solid sleep will further decrease as temperatures rise, especially in lower-income and elderly communities.
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They estimate people are already losing an average of 44 hours of sleep per year - and as the warming continues, people will be hard-pressed to find a good night's rest.
Nights have warmed faster than daytime temperatures in many places around the globe. By 2100, individuals worldwide could lose about 50 to 58 hours of sleep per year.
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Hotter temperatures "harm our sleep kind of across the board but that relationship increases in steepness. It becomes more significant in size the hotter the temperature gets."
We often take sleep for granted, but not getting enough shut-eye can increase our risk for many serious health issues such as poor mental health, obesity, heart problems or even early death.
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"When we're not meeting these sleep health targets, a lot of things start to go wrong," said Robbins, who was not involved in the study. "With more than just a night or two, this can become pretty problematic pretty quickly, putting stress on our vital organs, increasing risk for adverse outcomes and chronic conditions."
We have something called air conditioning, you may have heard of it
Ever heard of this great invention they call air conditioning?
Window ac $150, freestanding ac maybe $300. Put in bedroom even if no central ac and sleep very well. One more idiotic article.
I mean there is a cool invention called air conditioning
Turn on the AC and shut your mouth.
Toxic "forever chemicals" are being found in the blood of Canadians — and even higher levels are being found in northern Indigenous communities — says a new report from the government of Canada.
Studies show PFAS can harm human health and wildlife. Some of the chemicals accumulate in the liver and kidneys.
Because PFAS break down very slowly, living things are exposed to them repeatedly and PFAS blood levels can build up over time.
The government report states humans are also exposed to "forever chemicals" through the air they breathe, in dust and in drinking water.
"Northern Indigenous communities (as measured in adults, including pregnant women), as well as Indigenous youth and children in other parts of Canada were found to have elevated levels of certain PFAS," the government report said.
People often learn they have it when by developing an autoimmune disease. But the ailment might also play a role with heart disease, cancer, other disorders.
Most of us think of inflammation as the redness and swelling that follow a wound, infection or injury, such as an ankle sprain, or from overdoing a sport, “tennis elbow,” for example. This is “acute” inflammation, a beneficial immune system response that encourages healing, and usually disappears once the injury improves.Entire article: https://getpocket.com/explore/item/chronic-inflammation-is-long-lasting-insidious-dangerous-and-you-may-not-even-know-you-have-it?utm_source=pocket-newtab
But chronic inflammation is less obvious and often more insidious.
Chronic inflammation begins without an apparent cause — and doesn’t stop. The immune system becomes activated, but the inflammatory response isn’t intermittent, as it is during an acute injury or infection. Rather, it stays on all the time at a low level.
Experts think this may be the result of an infection that doesn’t resolve, an abnormal immune reaction or such lifestyle factors as obesity, poor sleep or exposure to environmental toxins. Over time, the condition can, among other things, damage DNA and lead to heart disease, cancer and other serious disorders.
“Unlike acute inflammation, which benefits health by promoting healing and recovery, chronic inflammation is characterized by persistent increases in inflammatory proteins all throughout the body and can damage health and promote several major diseases,” says George Slavich, associate professor of psychiatry and biobehavioral sciences at UCLA, referring to small proteins called cytokines that the immune system releases at the site of an injury to promote recovery.
“People typically don’t know that they have chronic inflammation until it’s too late,” he says...
Research shows that stress can cause inflammation in the body, leading to a number of chronic health conditions. Find out what to do about it.
A plethora of research shows that stress, a physical response to feeling challenged or threatened, induces or worsens medical conditions, including depression, cardiovascular diseases, neurodegenerative diseases, and cancer.Entire article: https://www.everydayhealth.com/wellness/united-states-of-stress/link-between-stress-inflammation/
But the exact mechanism by which stress induces disease has remained a mystery. Until now.
A review published in June 2017 in the journal Frontiers in Human Neuroscience concluded that inflammation is a common pathway of stress-related diseases.
“Chronic inflammation is an essential component of chronic diseases,” the authors wrote...
[...]Although eccentric and controversial, Ballard’s fictional portrayals of a species under stress captured an emergent reality. In 2000, the British Health and Safety Executive (HSE) reported that there had been a 30% increase in occupational stress between 1990 and 1995. Four years later, the Whitehall II study highlighted the role of stress in shaping sickness patterns amongst civil servants. In 2009, the HSE estimated that 13.5 million working days were lost to stress each year and that the annual cost of work-related stress was in the region of £4 billion. Concerns about the socio-economic impact of work-place stress have been accentuated by claims that rising trends in hypertension, heart disease and depression might also be caused by the stress of modern lives. According to the American biologist Robert M. Sapolsky (b. 1957), many chronic diseases can be explained in terms of the neuro-endocrine disturbances generated by attempts to cope with the stress of rapid social, cultural and technological change. While a certain degree of stress is accepted as necessary for performance and productivity, unmitigated stress appears to be threatening the health and happiness of modern Western populations in particular.Entire article: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4306016/
Although we may like to believe that we are more stressed than our predecessors, complaints about the stress and strain of life have a long history. Even Ballard’s idiosyncratic prophecies have their precursors. In the 1970s, the left-wing American writer Alvin Toffler (b. 1928) argued that post-war populations were suffering from ‘future shock’, a state caused by ‘the shattering stress and disorientation that we induce in individuals by subjecting them to too much change in too short a time’. The inhabitants of modern ‘throw-away society’, he insisted, were struggling to adapt to the ‘unwanted tempo’ of life manifest in the transience of people and places, the speed of technological innovation, and the surfeit of choice in consumables, education and the media. In the eyes of Toffler and many of his contemporaries, the inability to cope with change was directly responsible not only for epidemics of heart disease, obesity, anxiety, depression and suicide, but also for escalating levels of aggression and crime, the demise of sexual standards, and the instability of international relations...
[...]According to some inter-war clinicians, prolonged stress led not only to functional nervous diseases, but also to organic conditions. In 1925, the Chicago psychiatrist William S. Sadler (1842-1910) suggested that it was the ‘tension, the incessant drive of American life, the excited strain of the American temperament’ that was responsible for rising mortality rates from high blood pressure and diseases of the heart and kidneys. Humans, he argued, had not yet adapted to the ‘stress of a civilization which counts on the airplane and the wireless as commonplaces’. Of course, for Sadler the prevalence of stress-related conditions served to establish America’s social and technological superiority, an example of hubris also captured by the term ‘Americanitis’, which was popularised by the Harvard psychologist William James (1842-1910) with reference to his own nerve strain.
James’s insistence on a link between stress and psychological disturbances was in turn based on earlier studies of insanity and nervousness. In 1890, the English psychiatrist Charles Arthur Mercier (1852-1919) had argued that insanity was a ‘function of two variables’: heredity and stress. For Mercier, stresses ranged from internal physiological disturbances associated with puberty and pregnancy through to external factors such as overwork, marital problems, insomnia, and head injuries. Other clinicians echoed Mercier’s approach, pointing at the same time to the association between stress-induced insanity and social progress. According to the American physician William A. White (1870-1937), insanity could be initiated by the ‘stresses incident to active competition’ in the civilised, industrial world.
Perhaps the most persistent late Victorian version of a connection between advanced societies and stress was embedded in the concept of neurasthenia, a term popularised in the 1860s by the American neurologist George M. Beard (1839-83) and widely adopted by European physicians and their patients. In several books on neurasthenia, or what he referred to as ‘American nervousness’, Beard explained the growing prevalence of nervous fatigue in terms of the pressures of modern life. In a passage that betrayed a multitude of anxieties about rapid technological and cultural change, he argued that nervousness could be traced to the principal features of ‘modern civilization’, namely ‘steam-power, the periodical press, the telegraph, the sciences, and the mental activity of women’. As in many later pronouncements on the consequences of failing to adapt to accelerating social progress, stress and nervousness were thought to be more common amongst the affluent Western middle classes...
The discovery of oil in Nigeria was meant to transform the nation's fortunes by bringing prosperity. Nearly seventy years on, it has been the main driver of the economy, but at a heavy cost.https://www.youtube.com/watch?v=dbH1p430ApM
A new report commissioned by the government of Bayelsa, an oil-producing state in the south of Nigeria, details the extensive contamination of its land, its water and its people's bodies, from oil leaks and spills.
And it's blaming the oil companies. DW's Flourish Chukwurah has been to Bayelsa to assess the damage.
Researchers say wipes contain chemical group called ‘quats’, which are linked to serious health problems
Since the pandemic’s outset, the global use of disinfectants has gone through the roof. Clorox dramatically boosted production of its wipe packs to 1.5m a day by mid-2021, and an industry trade group said 83% of consumers surveyed around the same time reported they had used a disinfectant wipe in the last week.Entire article: https://www.theguardian.com/us-news/2023/may/11/concern-over-increase-in-disinfectant-wipes-linked-to-health-problems
But as schools reopened, a group of toxic chemical researchers grew concerned as they heard reports of kids regularly using disinfectant wipes on their classroom desks, or teachers running disinfectant foggers.
The researchers knew the disinfectants did little to protect consumers from Covid, and were instead exposing kids at alarming levels to what they say are a dangerous chemical group – quaternary ammonium compounds, also known as QACs, or “quats”.
Quats are common components in popular disinfectant wipes and sprays, especially those that claim to “kill 99.9% of germs”. But in a new peer-reviewed paper, the researchers assembled the conclusions from a fast-growing body of quat studies that point to several main issues: the chemicals are linked to serious health problems, they contribute to antimicrobial resistance, they pollute the environment and they are not particularly effective.
The chemicals “might not be efficacious, but also might be harmful”, said Courtney Carignan, a co-author on the paper and toxicologist at Michigan State University...
Effect on sewage systemshttps://en.wikipedia.org/wiki/Wet_wipe
Water management companies ask people not to flush wet wipes down toilets, as their failure to break apart or dissolve in water can cause sewer blockages known as fatbergs.[16][17]
Since the mid-2000s, wet wipes such as baby wipes have become more common for use as an alternative to toilet paper in affluent countries, including the United States and the United Kingdom. This usage has in some cases been encouraged by manufacturers, who have labelled some wet wipe brands as "flushable". Wet wipes, when flushed down the toilet, have been reported to clog internal plumbing, septic systems and public sewer systems.[18][19][17] The tendency for fat and wet wipes to cling together allegedly encourages the growth of the problematic obstructions in sewers known as "fatbergs".[20][21] In addition, some brands of wipes contain alcohol, which can kill the bacteria and enzymes responsible for breaking down solid waste in septic tanks.[22] In the late 2010s, other alternatives such as gel wipe had also come on to the market.[23][24]
In 2014, a class action suit was filed in the U.S. District Court for the Northern District of Ohio against Target Corporation, and Nice-Pak Products Inc. on behalf of consumers in Ohio who purchased Target-brand flushable wipes. The lawsuit alleged the retailer misled consumers by marking the packaging on its Up & Up brand wipes as flushable and safe for sewer and septic systems. The lawsuit also alleged that the products were a public health hazard because they clogged pumps at municipal waste-treatment facilities.[25] Target and Nice-Pak agreed to settle the case in 2018.[26]
In 2015, the city of Wyoming, Minnesota, launched a class action suit against six companies, including Procter & Gamble, Kimberly-Clark, and Nice-Pak, alleging they were fraudulently promoting their products as "flushable".[11][27] The city dropped the lawsuit in 2018 after concluding that the city had not experienced damage to its sewer systems or a rise in maintenance costs.[28] Upon announcement of the withdrawal of the suit, an industry trade group representing the manufacturers of the wipes released a statement that disputed the claims that the products are harmful to sewer systems.
The withdrawal by the City of Wyoming and last year's settlement terms of the Perry litigation corroborate what years of testing and field collection studies have shown: flushable wipes are not causing municipal clogs or increased maintenance. To date, despite sensational headlines, no wastewater operator has offered any public evidence that its maintenance issues are impacted by wipes marketed as 'flushable' and passing the industry assessment tests.
— David Rouse, president of INDA, Association of the Nonwoven Fabrics Industry (August 2018)[28]
In 2019, the industry body Water UK announced a new standard for flushable wet wipes. Wipes will need to pass rigorous testing in order to gain a new and approved "Fine to Flush" logo. As of January 2019, only one product had been confirmed to meet the standard, although there were about seven others in the process of being tested.[29]
A new study has found that some commonly consumed beverages such as fruit juice and artificial soda contain levels of toxic metals including arsenic, cadmium, and lead that exceed federal drinking water standards.
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When consumed in large amounts, cadmium can cause stomach issues and when inhaled at high levels, it can lead to lung damage or death. Cadmium is considered a cancer-causing agent.
“Exposure to low levels of cadmium in air, food, water, and particularly in tobacco smoke over time may build up cadmium in the kidneys and cause kidney disease and fragile bones,” the CDC notes.
Cadmium (Latin cadmia, Greek καδμεία meaning "calamine", a cadmium-bearing mixture of minerals that was named after the Greek mythological character Κάδμος, Cadmus, the founder of Thebes) was discovered in contaminated zinc compounds sold in pharmacies in Germany[14] in 1817 by Friedrich Stromeyer.[15] Karl Samuel Leberecht Hermann simultaneously investigated the discoloration in zinc oxide and found an impurity, first suspected to be arsenic, because of the yellow precipitate with hydrogen sulfide. Additionally Stromeyer discovered that one supplier sold zinc carbonate instead of zinc oxide.[5] Stromeyer found the new element as an impurity in zinc carbonate (calamine), and, for 100 years, Germany remained the only important producer of the metal.
Gas leaf blowers and lawn mowers are shockingly bad for the planet.
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Environmentalists say using a commercial gas leaf blower for an hour produces emissions equal to driving from Denver to Los Angeles.
While many critics first attacked the small engines for the noise they make, experts say these small, two-stroke engines release shockingly large amounts of pollution
two problems that modern and increasingly affordable electric-powered equipment solves.
A worker uses a battery-powered leaf blower
Orlins said she loaned her lawn care workers money so they could switch to battery-powered equipment.
No other country is drowning in waste as much as the US
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From an environmental perspective, waste incineration is preferable to landfill. However, just 17 out of the 38 countries in the report dispose of more waste through incineration than by landfill. They are Austria, Belgium, Denmark, Estonia, Finland, France, Germany, Ireland, Japan, Luxembourg, the Netherlands, Norway, Slovenia, South Korea, Sweden, Switzerland, and the United Kingdom.
Switzerland is the only country that does not send any waste to landfill. The Swiss produce 706kg of waste per capita, of which 333kg are incinerated and 210kg are recycled.4
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Environmental organizations such as the Friends of the Earth Germany estimate that less than 16% of the recyclable waste earmarked for recycling in Germany can be reused. The biggest problem is caused by mixtures of recyclable materials in items such as a yogurt pot with a cardboard sleeve and aluminium lid. If these are not separated before arrival, there is a high probability it will be registered at the recycling plant but will still end up being incinerated.
Small, very thin materials and some food packaging are difficult to recycle, as their reprocessing needs sophisticated technologies that are not easily available. The challenging recycling process is subsequently reflected in the price of secondary raw materials making these highly uncompetitive on the market.
Once, not that long ago, the depletion of the Earth’s ozone layer was a terrifying threat. But the phaseout of the [western] man-made chemicals that were destroying it became one of the great environmental success stories of the past century, and a highly touted example of how international cooperation can work to protect people and the planet.
Now, a team of scientists say they’ve detected small but rapidly rising concentrations of five of these ozone-destroying substances in the atmosphere, starting the year the ban on their use took effect — and that the source of the emissions is a mystery.
Two of the five, in particular, have no known current uses, deepening the mystery of their origins, the researchers say.
“We don’t really know where it’s coming from, and that’s really a bit scary,” said Stefan Reimann, a researcher at Empa
A more pressing concern is that the substances, known as chlorofluorocarbons (CFCs), are highly potent greenhouse gases — thousands of times moreso than carbon dioxide — and can persist for long periods.
Chlorofluorocarbons were once widely used in refrigerators, air-conditioners, aerosol spray cans and other applications. In the 1970s and 80s, a series of pioneering experiments showed that CFCs were destroying ozone in the earth’s stratosphere and, in particular, creating a gaping hole in the layer above Antarctica. Ozone depletion allows harmful ultraviolet radiation to penetrate to the planet’s surface, increasing the risks of skin cancers and cataracts in humans and harming plant and ocean life.