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Going forward, will we even know what is going on in the atmosphere regarding carbon dioxide and other greenhouse gases? Will there be any data collected and scientific evidence regarding climate change? As you may have heard, all climate change research and knowledge is being eliminated and erased. The words climate change and greenhouse gases  are not to be spoken or written according to the US government.

But even so, what is shocking to scientists is that 4 prestigious observatories operated by the US for decades, and which were instrumental in documenting the increase in greenhouse gases, are to be closed down by the US government. The Mauna Loa Observatory in Hawaii has been measuring CO2 levels in the air for over 65 years!

And yup, it has been documenting the steady increase, year after year, of CO2. Due to burning of oil, gas, and coal. In 65 years CO2 levels have increased from 316 ppm to more than 430 parts per million. This is a huge increase!

An article in The Conversation explains why carbon dioxide is so important - how it's needed for a habitable Earth, but too much carbon dioxide is bad.

"The reason carbon dioxide is so important is that this molecule has special properties. Its ability to trap heat alongside other greenhouse gases means Earth isn’t a frozen rock. If there were no greenhouse gases, Earth would have an average temperature of -18°C, rather than the balmy 14°C under which human civilisation emerged.

The greenhouse effect is essential to life. But if there are too many gases, the planet becomes dangerously hot. That’s what’s happening now – a very sharp increase in gases exceptionally good at trapping heat even at low concentrations."

From NY Times: After 7 Decades of Measurements From a Peak in Hawaii, Trump’s Budget Would End Them

More than 11,100 feet above sea level, surrounded by nothing but black rocks, white clouds and blue sky, the Mauna Loa Observatory is in a Goldilocks spot for studying the atmosphere.

The air that swirls around the isolated outpost located on a Hawaiian volcano is a mix from all over the Northern Hemisphere. That makes it one of the best places to measure greenhouse gases in the atmosphere. It is indispensable to scientists around the world. ...continue reading "The Erasing Of Climate Science"

After the recent incredibly hot and steamy week, it is nice to read something positive about nature. A recent review of studies found that taking a walk in a forest is good for us in a number of ways: reduces stress, improves our mood, and good for our physical health (e.g., lowers blood pressure, benefits immune system). It shouldn't be a surprise that walking in nature is soothing.

A recent presentation at the American Psychiatry Association (APA) annual meeting discussed a review of 15 studies looking at the health benefits of walking in a forest. While the length of time varied in each study, it was generally 2 walks per week, 2 hours at a time. The health benefits were so clear that the researchers said such walks are therapeutic and could be viewed as forest therapy.

While most of us call it a walk in nature or a walk in the woods, the Japanese refer to it as shinrin yoku, which translates as forest bathing. They have long-recognized the health benefits of shinrin yoku, and doctors prescribe forest bathing to stressed people to "recharge and recover". Some doctors in the US also recommend prescribing walks in nature (nature prescribed) - Park Rx America

From Medscape: Growing Evidence for the Healing Power of ‘Forest Therapy’

Spending time in a forest — an experience known as Shinrin-Yoku, or “forest bathing,” in Japan where the practice originated — can lift mood, reduce stress, and promote physical health, a new literature review suggested.

Most of the studies included in the review reported moderate to strong effect sizes, using validated measures such as the Profile of Mood States (POMS) and physiological indicators like blood pressure. ...continue reading "A Walk In the Woods Is Good For Us"

Some companies advertise so-called "nontoxic cookware" and "nontoxic nonstick cookware", with "new and improved" finishes, or coatings, or materials used. But are the ads truthful?

The Guardian published an investigation into the the matter. Uh-oh. They found evidence of toxic chemicals used (lead, mercury, titanium dioxide, etc.) by companies advertising their products as "nontoxic". Some of the cookware advertises itself as a nontoxic ceramic cookware, but it's actually "quasi-ceramic" and containing hidden ingredients (which the companies call proprietary ingredients).

Also, keep in mind that there are no actual regulations or legal definitions of what "nontoxic" or "ceramic" means. Some of the cookware contains lead, yet there are no federal limits for lead in ceramic cookware. The problems go on and on.

In other words, buyer beware. A safer alternative is to use traditional stainless steel, glass (e.g., Pyrex), and cast iron cookware

Excerpts from The Guardian: Toxic truth? The cookware craze redefining 'ceramic' and 'nontoxic'

The cookware industry has entered a golden age, largely driven by the wild success of a new generation of “nontoxic” and “nonstick” designer ceramic pans backed by stars including Selena Gomez, Stanley Tucci and Oprah Winfrey.

But the pans are probably not “nontoxic” some independent testing and research suggests. Nor are they even “ceramic” – at least not in the way the public broadly thinks of ceramics. Now, regulators are investigating some of the pan sellers’ claims. ...continue reading "New Cookware That Falsely Advertises As Nontoxic"

We are saddened when hearing about persons dying in floods, tornadoes, and other natural weather disasters. The numbers seem so high. But...it turns out the biggest killer each year is heat. Extreme heat kills more people most years than hurricanes, floods, and tornadoes combined.

Extreme heat events are on the rise globally (yup, climate change) and so the number of people dying are increasing. For example, the recent heat wave across Europe, when temperatures surged higher than 100 degrees Fahrenheit, is thought to have killed thousands of people. Especially since in many of the areas hit by the extreme heat people don't have air conditioning in their homes.

A quick analysis of heat-related deaths by researchers at the Imperial College London found that human-induced climate change intensified the European heatwave between June 23 and July 2, 2025 and tripled the number of heat-related deaths. They found that about 2300 people may have died from the extreme heat over the 10 day period across the 12 European cities they looked at, but that over all Europe there could have been tens of thousands of deaths. People over 65 accounted for a majority (88%) of the deaths.

Each year in the US, heat kills more people than any other type of extreme weather.

The following article was written last year, but it still applies since each year is getting hotter. Note that 2024 was hotter than 2023, which was the final year of the heat-related death analysis. NY Times: Heat Deaths Have Doubled in the U.S. in Recent Decades, Study Finds

As dangerous heat bears down on the central and eastern United States this week, a new study shows heat-related deaths across the country are on the rise. ...continue reading "Heat Is A Bigger Killer Than Other Weather Disasters"

Once again, those wondering about the chemicals lurking inside us have bad news. In a long-running study, researchers tested 201 young children (aged 2 to 4 years old) and found that all of them have many dangerous chemicals ("chemicals of concern") in their bodies. Some of the chemicals were in higher levels in the children than in their mothers during pregnancy.

In this study pregnant women from 4 states had their urine analyzed, and later the urine of their children when they were 2 to 4 years old. The testing of blood and urine from a person and looking for certain chemicals is called biomonitoring.

The researchers only looked for  111 chemicals and found that at least 5 children had 96 of them detected in their urine. Over 50% of the children had 48 chemicals detected. Thirty four of the chemicals were detected in over 90% of the children. But keep in mind that they only looked for a limited number of chemicals. Some of the chemicals found are not being monitored in adult biomonitoring. Many chemicals we are routinely exposed to, such as the common pesticide glyphosate (found in many non-organic foods) were not looked at.

One trend the researchers found is that levels of 2,4-D (pesticide used as a herbicide or weed-killer) are trending upwards over time. This is because 2,4-D is commonly used as a weed-killer on lawns (including Feed and Weed) and elsewhere, but it is also used on genetically modified crops.

The 111 chemicals tested for are from the foods and beverages children (and adults) ingest, personal care products (e.g., soap, lotion), the chemicals used in the home (e.g., pesticides, cleaning products) or chemicals outgassing from products used in the home (e.g., from non-stain synthetic rugs, plastic toys, vinyl floors). Children are exposed to the chemicals when they breathe indoor and outdoor air, eat food, touch surfaces or objects - both indoors and outdoors.

Bottom line: Eat as many organic foods as possible (pesticides such as 2,4-D and glyphosate are not allowed in organic food production). Additional tips: Lifestyle tips for avoiding harmful chemicals.

Excerpts from Science Daily: Researchers tested 200 toddlers — 96 chemicals were lurking in their bodies

A national study published in Environmental Science & Technology finds children aged 2 to 4 years in the United States are routinely exposed to a broad range of potentially harmful chemicals. Many of the chemicals the researchers identified are not routinely monitored and may pose health risks. ...continue reading "Chemicals of Concern Found In the Bodies of Young Children"

For years I heard health care providers recommend to persons worried about or with type 2 diabetes to only consume water, unsweetened coffee or tea, or zero calorie artificially sweetened beverages, including soda. Well, it turns out that artificial sweeteners have all sorts of harmful health effects, with different sweeteners (e.g., erythritol) having different effects.

Another recent study found that the consumption of diet drinks and saccharin, a very popular sugar substitute, are associated with an increased risk of type 2 diabetes. In other words, the sweeteners are linked to the very problem people are trying to avoid.

A little confusingly, the researchers did not find a link to type 2 diabetes when looking specifically at overall artificial sweetener, sucralose, and aspartame intake. But they did with saccharin (the oldest artificial sweetener in use) and overall diet drink consumption.

This study questioned people 3 times over 20 years, with a final follow up at 30 years, so perhaps these results are due to different artificial sweeteners used in drinks over time, and even what they themselves purchased. For example, some people buy saccharin to add to coffee and tea at home.

From Medscape: Diet Drinks, Saccharin Tied to Increased Diabetes Risk

Consuming higher amounts of diet drinks and/or saccharin was associated with an elevated risk of developing diabetes, while total artificial sweetener intake, sucralose, and aspartame showed no significant association, according to an analysis of data from the Coronary Artery Risk Development in Young Adults (CARDIA) study. ...continue reading "Diabetes and Artificial Sweeteners"

Credit: Wikipedia

Well, well, well...It's unbelievable, but we've reached a point in this country where vaccines and their effectiveness have to be defended. To combat disinformation and misinformation, doctors have set up a database of vaccines and all the studies that have studied them - whether they work, how well they work, how they were done, and any adverse effects.

Dr Jake Scott, an infectious disease specialist at Stanford University, and his colleagues created a spreadsheet documenting randomized controlled trials (the best kind or research!) conducted for licensed vaccines. There are over 300 such trials listed in the spreadsheet, some of them conducted as early as the 1950s (e.g., the massive polio Salk Vaccine Field Trial). And the vast majority include the safety data (whether the vaccine is safe).

Dr. Scott points out that the evidence (all those studies!) shows that people claiming that vaccines (including childhood vaccines) have not been tested in randomized trials are "unequivocally, demonstrably, measurably false". Vaccines have been studied over and over. And they work!

Information about the spreadsheet and the randomized controlled studies (RCTs) for each vaccine are discussed in an interview with Dr. Jake Scott. Excerpts from CIDRAP (Center for Infectious Disease Research and Policy): Vaccine RCT spreadsheet aims to show the data, dispel myths about vaccines

Since late April, an infectious diseases specialist at Stanford University and his colleagues have been volunteering their time on a project they hope will help educate the public, and combat misinformation, about the safety and efficacy vaccines.

The project, led by Jake Scott, MD, is a spreadsheet of all the randomized controlled trials (RCTs) that have ever been conducted for licensed vaccines. The idea, hatched on the social media site X, was prompted by responses to an old video of current Department of Health and Human Services Secretary Robert F. Kennedy Jr., in which he claims that none of vaccines mandated for US children has ever been tested in preclinical studies against a placebo. In one of the responses, infectious disease physician Brad Spellberg, MD, suggested a crowd-sourced effort to identify and post all of the RCTs in which vaccines have been tested against a placebo. ...continue reading "New Database of Vaccine Studies, Their Safety, and Their Effectiveness"

Nanoparticle form of titanium dioxide Credit: Wikiedia

Titanium dioxide has been a problematic food additive for years. The European Union banned the additive several years ago, while the FDA views titanium dioxide as safe. Recently, the company (Mars) that makes the candy Skittles announced that it was removing the additive from the ingredients.

Well, it took a lawsuit filed in 2022 alleging that Skittles are "unfit for human consumption" (because of the ingredient titanium dioxide) to finally have the manufacturer remove it from the product. Removing titanium dioxide  won't change the taste - it's only used as a "brightener" (makes colors brighter).

In the past decade, a number of studies found that the nanoparticle ((between 1 and 100 nanometers) form of titanium dioxide to have harmful health effects, especially to the gut (intestines) [see post]. This is the form typically used in over 11,000 products in the US, all ultra-processed (many candies, baked goods, gum, frosting, snack foods, etc.)

Bottom line: Read food ingredient lists, and avoid titanium dioxide (if possible).

From Medical Xpress: Skittles removes controversial additive targeted by RFK Jr.

Mars Inc.'s Skittles candies are no longer being made with titanium dioxide, a chemical that whitens foods, brightens colors and makes candy appear shiny, the company confirmed to Bloomberg News. ...continue reading "Titanium Dioxide Will No Longer Be Added To Skittles"

Titanium dioxide nanoparticles Credit: Wikipedia

Titanium dioxide appears in many foods and some medicines (e.g., Allegra), in order to make colors and whites look brighter. In other words, it is an unnecessary food additive, found in a large variety of (ultra-processed) foods, including some candies, gum, frosting, soups, and even macaroni and cheese. It is allowed in the US (in over 11,000 food products!), but banned in Europe due to its harmful health effects.

A number of studies have linked titanium dioxide in its small nanoparticle form (between 1 and 100 nanometers) with a number of health harms, including to the gut (intestines). A recent study found that nanoparticle titanium dioxide has harmful or disruptive effects on the intestinal endocrine (hormone) system, resulting in abnormal blood sugar (glucose) levels, which can lead to insulin resistance and diabetes. It also caused intestinal lining changes, reduced levels of gut hormones, and resulted in a drop in enteroendocrine cells

Larger particles of titanium dioxide Credit: Wikipedia

While the study was done in mice, the results are also thought to apply to humans. The study didn't find the same health harms from larger titanium dioxide particles called microparticles (about the size of a fine grain of sand), but only from the nanoparticles. The problem is that nanoparticles are so small that once ingested, they get into cells and tissues throughout the body. However, large particles can be excreted from the body.

Bottom line: Unfortunately, it's the small nanoparticles that are so common in foods that we ingest. Read labels carefully and try to avoid those with titanium dioxide or artificial colors (includes titanium dioxide).

Excerpts from two informative articles: 1) From investigative journalism site US Right to Know: Tiny titanium dioxide particles in food raise blood sugar, disrupt gut hormones in mice, study finds

The study, published this month [May 2025] in Food and Chemical Toxicology, adds to growing concerns over the safety of titanium dioxide (TiO₂), a widely used color additive that is banned in the EU but widely used in the U.S. and elsewhere. It also highlights the food industry’s increasing use of microscopic materials to preserve or enhance foods.  ...continue reading "Health Effects From Titanium Dioxide In Foods"

Once again artificial sweeteners are in the news, and not in a good way. New research found that the sugar substitute erythritol, at a concentration typically found in an artificially sweetened beverage, has harmful effects on the small blood vessels of the brain.

Erythritol crosses the blood brain barrier and interacts with the brain's cerebrovasculature (the blood vessels in the brain, including the arteries, veins, and capillaries that supply blood and nutrients to the brain tissue). This study focused on the smallest blood vessels (microvascular) in the brain. And yes, found that the amount or erythritol in 1 diet beverage has adverse effects at a cellular level on these blood vessels.

This study was done in a lab setting (and not directly on humans), but research results match up with other studies on erythritol. Other studies already found that erythritol increases the risk of heart attacks, heart disease, strokes, as well as blood clot formation. This study's results give an explanation for why there is a increased risk of these brain vascular (blood vessel) events happening.

Erythritol is found in some beverages advertised as low or zero calorie (e.g., Monster Zero energy drinks, Blue Sky Zero Sugar soda, Red Bull Zero) and in some low calorie foods (e.g., Halo Top low-calorie ice cream). Read ingredient lists on labels!

From Medical Xpress: Major sugar substitute found to impair brain blood vessel cell function, posing potential stroke risk

Erythritol may impair cellular functions essential to maintaining brain blood vessel health, according to researchers at the University of Colorado Boulder. Findings suggest that erythritol increases oxidative stress, disrupts nitric oxide signaling, raises vasoconstrictive peptide production, and diminishes clot-dissolving capacity in human brain microvascular endothelial cells. ...continue reading "The Sugar Substitute Erythritol And the Brain’s Blood Vessels"