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Why hydroquinone, the skin bleaching chemical, is highly toxic

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Why hydroquinone, the skin bleaching chemical, is highly toxic

March 23, 2013 - Why hydroquinone, the skin bleaching chemical, is highly toxic

Saturday, March 23, 2013 by: Danna NorekTags: hydroquinone, skin bleaching, chemicals

Hydroquinone is a carcinogen

Hydroquinone toxic to several of our vital systems

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Great Barrier Reef on brink of 3rd major coral bleaching in 5 years, scientists warn

February 27, 2020 -

"Bleaching" is a phenomenon wherein coral polyps expel the zooxanthellae or algae living inside their tissues. This causes the coral to lose its color and turn white, hence the term bleaching.

Experts say this usually happens because of several triggers, such as pollution, bacterial infection, changes in salinity, exposure to oil and chemical spills, erratic temperatures and sedimentation. In a stable environment, coral polyps live in an endosymbiotic ...

Australia is dealing with the “most severe bleaching event ever recorded” on its western reefs

November 12, 2017 - bleaching at Rottnest Island – 29 per cent of corals were moderately bleached. Ningaloo Reef, a UNESCO World Heritage site, escaped bleaching, but had some temperature-unrelated coral mortality. Temperate corals at Bremer Bay (Southwest) experienced no bleaching," reported Dr. Schoepf.

The researchers said that it was the first documented regional-scale bleaching event Western Australia has ever experienced during an El Niño year. This ...

Bleaching agent used in foamed plastics like yoga mats and shoe soles found in McDonald's McRib sandwich

September 28, 2012 - Bleaching agent used in foamed plastics like yoga mats and shoe soles found in McDonald's McRib sandwich

Friday, September 28, 2012 by: J. D. HeyesTags: McRib sandwich, yoga mats, chemicals

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Bleaching agent used in foamed plastics like yoga mats and shoe soles found in McDonald's McRib sandwich

September 28, 2012 - Bleaching agent used in foamed plastics like yoga mats and shoe soles found in McDonald's McRib sandwich

Friday, September 28, 2012 by: J. D. HeyesTags: McRib sandwich, yoga mats, chemicals

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Great Barrier Reef still thrives amid climate doom narratives

August 08, 2025 -

The Great Barrier Reef has achieved its fifth-highest coral cover since monitoring began in 1985, according to the Australian Institute of Marine Science (AIMS), defying apocalyptic claims from activist-aligned outlets like the BBC and The Guardian, among other mainstream media. Despite a dip triggered by the 2024 El Niño-driven bleaching event, coral growth data reveal a resilient ecosystem that has rebounded repeatedly. Yet mainstream media ...

Coral resilience defies alarmist claims of climate catastrophe

October 19, 2025 -

Recent claims that climate change is decimating coral reefs—such as those in The Hill and BBC—ignore mounting evidence of their resilience. Contrary to apocalyptic headlines, corals have not only survived past warming extremes but are rebounding from modern bleaching events with remarkable speed. Scientific studies from French Polynesia to Australia reveal a pattern of recovery that undermines the narrative of irreversible damage.

The ...

Be sure to buy biodegradable sunscreen to protect coral reefs

February 07, 2019 - bleaching. Coral bleaching is the result of stress from changes in temperature, light and nutrients in the environment. Stressed corals release algae in their tissues, which make them turn totally white. Stressed corals are in greater danger of dying than their healthier counterparts.

This has led to a global outcry for more reef-friendly sunscreens. Craig Downs, executive director of the Haereticus Environmental Laboratory, which examined the effects of sunscreen ...

Experts warn heatwaves can cause “significant and severe” damage to coral reefs

July 19, 2023 - bleaching events are getting more frequent, so it's really an existential crisis for coral reefs as we know them. This appears to be unprecedented in our records," said Derek Manzello, a coordinator at the National Oceanic and Atmospheric Administration (NOAA) Coral Reef Watch.

Coral reefs are natural wonders that sustain countless species and weaken damage from storms.

In the U.S., reefs produce economic benefits to the sum of $3.4 billion yearly for fisheries, ...

Chlorine dioxide found to destroy DIOXINS in pulp/paper mass

March 08, 2023 - bleaching process, these softwood pulps typically contain polychlorinated dibenzo-p-dioxins and dibenzofurans -- two of the most toxic substances known to man.

Advancements in the pulp industry have led to totally chlorine-free bleaching methods and elemental chlorine-free bleaching methods. These advancements have reduced dioxin emissions at pulp mills, protecting the air, water, and soil from exorbitant levels of dioxins. However, the concentration ...

A safe guide to using bleach to purify water when SHTF

January 28, 2019 -

The two most common types of active chlorine used for cleaning purposes are sodium hypochlorite and calcium hypochlorite. Sodium hypochlorite is more commonly known as bleach, while calcium hypochlorite is known as bleaching powder. Both have their uses when it comes to disinfecting common household items, but calcium hypochlorite is generally superior when it comes to chemically disinfecting water. It can also last longer, with a shelf life of up to 24 months, as ...

Amazon, eBay and other online stores advertise teeth whiteners with toxic levels of hydrogen peroxide

May 30, 2021 - bleaching gel kit sold by a store called Oral Orthodontic Materials – containing 300 times the safety limit.

Both Amazon and eBay listed five products with dangerous amounts of hydrogen peroxide, while Wish advertised two. One of the teeth whiteners sold on Wish – the Crest 3D Whitestrips – contains more than a hundred times the safety limit.

Sue Davies, head of consumer protection policy at Which?, is concerned that many of the products listed on online marketplaces break ...

Say goodbye to bad hair days: Follow these tips to naturally care for chemically treated hair

November 10, 2019 - bleaching. When hair is dyed, the chemicals lift the cuticle of the strands to add pigments and change the shade. In bleaching, the opposite happens: When the cuticle is lifted, the strands undergo decoloration or removal of color.

Bleaching hair often permanently opens cuticles, making the hair significantly drier and coarser. Dyes, on the other hand, do not have this effect as they are much gentler on the hair.

Colored hair can also benefit ...

Scientists are “farming” coral reefs in an effort to increase their survival

April 24, 2018 - bleaching. Once this happens, corals will then starve since they lost their primary food source in algae, become diseased, and eventually die.

The death of a coral is not only unfortunate, but it also carries a sinister effect throughout the ecosystem. The once-vibrant reefs turn barren, unable to support the various species that call it home.

The effects of bleaching are widespread: In the past 30 years, at least 50 percent of corals have been lost ...

Whitening and damaging: DIY teeth whitening found to weaken tooth enamel, make teeth more sensitive

July 01, 2019 -

Researchers from the University of Manchester Dental School have revealed that over-the-counter tooth whitening products can damage tooth enamel and make your teeth more sensitive.

This problem has been compounded by legislation like European regulations that keep the bleaching agent hydrogen peroxide out of home tooth whitening treatments. The most common alternatives are sodium chlorite and sodium carbonate peroxide, and they’re causing significant damage to ...

Mainstream media downplays good news at Australia’s Great Barrier Reef

August 11, 2022 - bleaching. However, this reverses when sea temperatures stabilize.

Corals had been around in one form or another for 500 million years, and it is likely that this natural process extends back as far as humans know life on the planet.

In the central reef, the declines seen in 2012 and 2016 were due to natural events, specifically Cyclone Yasi in 2012 and the El Niño in 2016. Things did not fare any better when crown-of-thorns starfish attacks broke out.

Since ...

Scientists explain how sunscreen can cause harm to coral reefs

May 17, 2022 - bleaching events or damage coral DNA.

Djordje Vuckovic, an environmental engineer at Stanford University in California, said the metabolic pathway of corals that are meant to detoxify is actually making a toxin, and they essentially "convert a sunscreen into something that's essentially the opposite of a sunscreen," which leads to these bleaching events.

The study started with sea anemones, which the scientists used as a model for coral reefs, which ...

Panama’s vanishing ocean lifeline signals a broader climate crisis

September 11, 2025 - bleaching.

The STRI research team has meticulously monitored this cycle for forty years. Their data paints a picture of a reliable, predictable natural system – but that reliability shattered in 2025.

Their instruments detected none of the usual signs; the water temperature did not drop, and the nutrient levels did not spike. The biological productivity that should have marked the season was conspicuously absent.

In a study published Sept. 2 in the ...

Australia plans to dump tons of sludge on the Great Barrier Reef

July 09, 2019 - bleaching. Last year, Australia pledged AUS$500 million to protect the reef after the losses. At that time, one of the reef’s threats was identified as “large amounts of sediment,” so it’s difficult to understand why they are now allowing this type of activity to go forward.

Some of the reefs have rebounded from the mass bleaching that took place in 2016 and 2017, but others are showing lasting effects and some have noted further declines. The reefs also suffered ...