Myth busting – Super Facts

Digging Up Super Facts

Daily writing prompt

What change, big or small, would you like your blog to make in the world?

I have two blogs, Leonberger Life and this one called Superfactful.

Leonberger Life feature amusing and heartwarming stories about our late Leonberger dog Bronco, as well as other Leonbergers. It also has a lot of information about the Leonberger breed, the history, care, training, Leonberger organizations, etc. I also wrote a Leonberger book, which I am featuring in the sidebar. With my Leonberger Life blog I want to spread information about the Leonberger breed, a rare, large, furry, friendly and fun dog breed and also bring attention to my book The Life and Times of Le Bronco von der Löwenhöhle, stories and tips from thirteen years with a Leonberger.

The goal of Superfactful, which is this blog, is to create a long list of facts that are important, not trivia, and that are known to be true and yet are either disputed by large segments of the public or highly surprising or misunderstood by many. I call these kinds of facts Super facts because they could potentially be very impactful on how we view the world.

Humans have accumulated an enormous amount of knowledge. Science does not know everything, but it knows a lot. The same cannot be said for us as individuals. We know next to nothing and harbor a lot of false beliefs. I think that is pretty much true for all of us, including me, but we may not know it. With this blog I am trying to correct some of that, at least regarding important facts. In addition, along the way, I am hoping to learn a lot myself and have some of my own false beliefs corrected.

In short, the change I would like to make in the world with my blog is to correct as many false beliefs as possible and educate my readers, and myself, about facts that are both important and mind blowing.

A blue brain is splitting up into pieces. — Smash your old beliefs with new surprising facts, super facts. Expand your mind. Shutterstock ID: 1685660680 by MattL_Images

What is a Super fact?

A super fact is:

An important fact but it can be simply stated.
Very surprising, shocking, widely disputed, misunderstood, or mind-blowing.
Yet it is true with a very high degree of certainty.

The first two criteria are subjective. The last criteria can be determined from longstanding scientific consensus, my own expertise and education (valid for just a few topics), agreement between multiple reliable online or offline sources such as agreement among research papers, reputable scientific organizations, NASA, NOAA, Pew Research Center, Our World in Data, etc. I should say I also link to less academic sources such as Wikipedia, but I do not solely rely on them.

You can read more about how I choose super facts here. Also, I am open to challenges based on good data (not opinions), as well as questions. With that I don’t mean that you cannot give your opinion in a comment. I just won’t update or remove a super fact based on an opinion. In addition, I am happy to receive suggestions for super facts. I am trying to collect a few hundred super facts and need all the help I can get. In the end I want to pick the 100 best ones. I might use a poll for that.

Sometimes a super fact involves doing myth busting of a popular myth and sometimes a super fact is stating something that is well known but disputed by many. In these cases, the evidence is likely to be conclusive, but the fact is still disputed by those who don’t know much about the evidence, or don’t want it to be true. In this case, I will include a substantial amount of evidence, and it might be lengthy. People get bamboozled all the time, and that includes me. It is not easy to admit that you have been bamboozled. You can read about my own experiences with that here.

Picture shows a scale held by a pointing finger. Fact is on the left shown as a bright light bulb. Myth is shown on the right as grey ball | Digging Up Super Facts — Fact or myth. Shutterstock Asset id: 2327968607

Examples of Super Facts

At the time of posting this I have made plans for 150 super facts and so far, I have posted 54. I will post a lot more. Below I am listing a few of my first 54 super facts.

Superfact 5 : Two events may be simultaneous for some but not for others. Click to visit post.

Two events may be simultaneous for some but not for others. This means that two events that are simultaneous to an observer may happen at different times to other observers. If two lamps A and B turn on at the same time according to observer #1, lamp A may turn on first for observer #2, and lamp B may turn on first for observer #3. All three observers are correct because time is relative.

The picture shows three pairs of lamps and three people. The setup is used to show three situations. — Amy is traveling at a high speed to the left compared to two lamps A and B. Alan is standing still compared to the lamps. Adam is traveling at a high speed to the right compared to two lamps A and B. Alan turns on the lamps at the same time. After considering the travel time of the light she sees, Amy concludes that lamp B turned on first. After considering the travel time of the light he sees, Adam concludes that lamp A turned on first. I should add this non-simultaneity can only happen if the lamps are separated by a distance.

Superfact 7 : Poverty and child mortality has been sharply reduced worldwide. Click to visit post.

Extreme poverty as well as child mortality has been sharply reduced the world over. The countries that are the worst-off today are still better off than the countries that were doing the best at the beginning of the 19th century. Over the last 20 years extreme poverty and child mortality have continued to decline sharply.

This graphics contain two graphs one for the world (blue) and for the United States (red) | Digging Up Super Facts — Child mortality in in the world since 1950. The spike you see around the end of 1950 to 1960 is the great leap forward famine in China. In 1950 the child mortality rate was 22.7% and in 2023 the child mortality rate was 3.6%.

Superfact 25: Global Warming is Happening and is Caused by us – click to visit post.

Global warming is happening. Or if you call it Climate Change or Climate Disruption is indeed happening. And it is happening very fast. We also know that it is caused by us primarily as a result of our burning of fossil fuels. There is a long-standing scientific consensus on these two facts because the evidence is conclusive. Check the evidence in the post.

Superfact 28: That Earth is round was well known long before Columbus – click to visit post.

That Earth is round, or spherical (or closely spherical) had been known for at least a couple of thousand years by the time Columbus set sail. Columbus did not set sail to prove that earth was round, and he knew it was round.

On the left a wheel with spokes. On the right there is a sphere and sun rays that hit in two places. One without a shadow and one with a shadow | Digging Up Super Facts — Illustration of the measurement of the Earth circumference by Eratosthenes (2,300 years ago). On June 21st there is no shadow in Syene/Aswan but there is one in Alexandria. Asset id: 2319651251 by Javier Jaime

To see a list of the Super Facts click here

Choosing Super Facts

This is my 100^th post on my Superfactful blog. There are 50 super-fact posts. The other posts are posts about the blog, like this one, or posts featuring interesting information that I think is important, or book reviews of non-fiction books, travel posts with some information, posts about me, or mysteries.

However, the goal of this blog is to create a long list of facts that are important, not trivia, and that are known to be true and yet are either disputed by large segments of the public or highly surprising or misunderstood by many, perhaps shocking. Learning or accepting such a fact will change how you view the world. This makes these facts deserving of special attention, which is why I refer to them as super facts. You can also consider the super facts as a form of myth busting, major myth busting.

As mentioned, at the time of writing this I have come up with 50 super facts and made 50 posts about those super facts, but I am hoping to come up with hundreds. I am open to suggestions for super facts as well as critique of super facts. Tell me if you think it is trivia, not important, not surprising, or not an established fact. To see the first 50 super facts click here.

A blue brain is splitting up into pieces | Choosing Super Facts — Smash your old beliefs with new surprising facts, super facts. Expand your mind. Shutterstock ID: 1685660680 by MattL_Images

Deciding on What is an Important Fact

Deciding what is an important fact or not is subjective, but for the same reason it also makes it an easy thing to decide. Ultimately, I decide what is important. It is difficult to compare the importance of facts, but my main concern is to avoid trivia. I also try to avoid facts that may be important to me but do not concern others very much.

For example, I am looking for facts that people discuss a lot, or are often mentioned in the mainstream media, or facts that people dispute fiercely despite a scientific consensus and overwhelming evidence telling us what is true. I am looking for facts from science that could change people’s perspective on nature, our world, or the universe, or facts that could change people’s view of the world, that are related to important historical events, such as the deaths of millions of people, etc.

Shocking Facts

Deciding whether a fact is highly surprising, misunderstood by many, shocking, or contentious and disputed is also not an exact science. In some cases, there are polls stating how common a certain belief is amongst the public but in most cases (that I consider) I have no polls to fall back on. I just have to use my judgment. In some cases, almost everyone I’ve spoken to about the subject is misinformed, bamboozled, or they misunderstand it. In other cases, I need to decide based on my impression. I have to guess.

A shocked woman in front of a screen | Choosing Super Facts — Super facts can be surprising, shocking, or something you refuse to believe, and yet they are true. Photo by Andrea Piacquadio on Pexels.com

Finding the Truth

As I mentioned, deciding on what is important or highly surprising is not an exact science. I think that is OK. There’s going to be super facts that are impressive and some that are less so. However, the third criteria is the one thing that I need to get right, and that is whether the fact is true or not.

We humans are not very rational, and we often believe with intense conviction things which are false. I think that is true for all of us. We don’t know what those false beliefs are, otherwise, we wouldn’t have them. However, this is where the super facts can come in handy, as tools for personal growth if we are willing to change our minds in the face of new evidence. This is easier said than done since we are emotional beings embedded in our culture, our tribal attachments and favorite myths. We have biases, we jump to conclusions, we overestimate our understanding of subjects we don’t know much about (see the Dunning Kruger effect), and we tend to believe what we want to believe. That goes for me too.

Adding to the difficulty on deciding what is true is the fact that the internet and especially social media is full of misinformation. There are an enormous amount of YouTube videos, podcasts, and websites touting false claims, conspiracy theories, and pseudo-science. There are political think tanks deceiving the public and industry funded organizations spending billions of dollars on misinformation, as well as people claiming to have special insights and superior knowledge.

I see the most ridiculous claims on Facebook and Instagram on a daily basis and the amazing thing is that people fall for it. If it supports their pre-existing beliefs or opinions, they see it as proof or conclusive evidence and they don’t take the time to question the source. When I see this, I often point out that the source is not reliable, or it may even be a satirical site, and I often add something from Snopes to my comment assuming they’ve investigated it.

Sure, when I do this, I am raining on someone’s parade, and it is quite often not welcome. No matter how politely I try to explain the situation I end up getting insulted or blocked. I should say, I’ve also fallen for fake information myself, but I try to accept it when someone points it out to me using reliable sources. The point is, we humans are really bad at deciding what is true, and we underestimate how bad at it we are, and deciding what is true is often a quite challenging task.

Before I publish a super fact, I need to be fairly certain that it is true. Outside of mathematics and logic you cannot be 100% sure about anything, but some facts we can say with very high certainty are true. For example, the earth is not flat like a pancake, the Sun is bigger than the earth, the capital of the United States is Washington DC, the heart pumps the blood, we breathe oxygen, carbon dioxide is a greenhouse gas, the light speed in vacuum is a universal constant, time dilation is real, Cesium-137 is radioactive, etc. Most likely you only know a very tiny fraction of a percentage of the facts that we know to be true with very high certainty. Some of those facts will surprise you, shock you, or are facts you would like to dispute, and I call them super facts.

Determining What Facts Are True

When I determine whether something is true with a high degree of certainty I start with my own expertise. For example, when someone claims that the second law of thermodynamics (entropy) contradict evolution I know that to be false because I have a degree in physics (master’s degree) and I’ve taken several classes in thermodynamics and statistical mechanics. In addition, I am very familiar with the faulty argumentation behind the claim because I’ve read dozens of creationist books. Yes, I was once bamboozled by creationism myself. Then I learned more about science, evolutionary biology, physics and thermodynamics.

Ludwig Boltzman’s formula from 1874 — Second law of thermodynamics Shutter Stock Vector ID: 2342031619 by Sasha701

However, my personal expertise is not enough. I also find out about scientific consensus or expert consensus and evidence from reliable sources. I should say that using scientific consensus as a reliable indicator that something is true does not fall under the “appeal to authority fallacy”. The “appeal to authority fallacy” refers to appealing to influential people or organizations who may not necessarily be experts, and regardless of the evidence. In science you don’t really have authorities, you have experts who often disagree with each other. In the event almost all experts agree on a certain fact that has been thoroughly vetted you can trust that fact with nearly 100% certainty, and that is not appeal to authority but a probability argument.

I typically select several reliable sources such as research papers published in respectable journals, national academies, government websites such as NASA, NOAA, EPA, FBI, respected research organizations such Our World in Data, Pew Research Center, and academic publications and books. I make sure that they various sites I find don’t contradict each other regarding my prospective super fact. If they all seem to agree I accept the super fact and include a few of the links in my post.

If I don’t have much personal expertise on a subject I start out by asking Google AI. I don’t ask ChatGPT because I believe it is less reliable with respect to information. Then I check Wikipedia and or another online encyclopedia such as encyclopedia Britannica. This is not to establish the truth but to get an idea. Wikipedia is not an academically acceptable source, but it is rarely wrong and serves as a good first filter to save time. Then I start focusing on the reliable sources above and I will make sure I understand the evidence.

So, in summary I will use my expertise, scientific consensus, reliable sources and better, agreement between reliable sources, to determine if I can say with confidence that something is true. I will also frequently include links from Wikipedia in my posts because Wikipedia typically feature good summaries that are easy to understand. Naturally, anyone is free to dispute any of my super facts. Just make sure you provide good evidence from an arguably reliable source, or I cannot take it seriously.

Picture shows a scale held by a pointing finger. Fact is on the left shown as a bright light bulb. Myth is shown on the right as grey ball | Choosing Super Facts — Fact or myth. Shutterstock Asset id: 2327968607

Sources I will not consider are claims from unreliable sources, political think tanks, talk show hosts, politicians, articles written by contrarians heavily funded by industry or political organizations, and random Reels or YouTube videos, and I will not entertain conspiracy theories for my purposes. Also, I will ignore, articles with click bait titles, sources making claims about a great swindle by the scientific community, articles claiming everyone is lying to you, articles purporting to reveal the hidden truth, articles insisting on presenting the truth that “they”/the-others won’t tell you, etc. Cults will tell you that everyone else is lying to you. I’ve learned not to fall for it at this point.

My Super Fact List

Finally, here are a few examples of my super facts.

To see all the Super Facts click here

Scientists Agree that Global Warming is happening and that we are the Cause

Super fact 34: Climate Scientists agree that Global Warming or if you call it Climate Change is happening, and that it is caused by us primarily because of our burning of fossil fuels. There is a long-standing scientific consensus on these two facts because the evidence is conclusive. Typically, studies show an agreement of at least 97% or 98% among climate scientists.

This is a super fact because surveys show that this is not what the public believes and yet it is true. The public incorrectly believes that there is a large disagreement among scientists on this topic. A note, to understand why the evidence is conclusive as to why global warming is happening and is caused by us click here.

Note : I will use the term “global warming” in this review. Whether you call the phenomenon climate change, climate disruption, or global heating, is not important.

The Scientific Consensus

This extensive survey from 2013 of 12,000 climate papers (papers published over two decades) by Dana Nuccitelli and Cook, etc., concluded that 97.1% of climate scientists endorsed the consensus position that humans are causing global warming.

They also did a science author self-rating which concluded that 97.2% of climate scientists endorsed the consensus position that humans are causing global warming. Another conclusion from the survey was that the consensus had increased from around 90%, perhaps less, in the early 1990’s.

A later review of six independent, peer-reviewed studies examining the scientific consensus about global warming have concluded that between 90% and 100% of climate scientists are convinced human-caused global warming is happening. A more recent study (2021) found that as many as 98% of climate scientists are convinced global warming is happening and is human-caused. Numerous other surveys have concluded the same thing.

People’s Beliefs About Global Warming

This 2024 survey from Yale University show that most Americans (61%) understand that global warming is mostly human caused. By contrast, 28% think it is caused mostly by natural changes in the environment. Most Americans (58%) <<Link-6>> understand that most scientists think global warming is happening. This percentage has trended generally upward since this survey began in 2008. By contrast, about one in five (22%) think there is a lot of disagreement among scientists about whether global warming is happening.

The green graph is going up slightly starting from 46% in 2009 and ending in 58% in 2023. The black graph starts at 33% in 2009 and ends in 22% in 2023. The yellow graph starts at 2% in 2009 and ends in 2% in 2023 | Scientists Agree that Global Warming is happening and that we are the Cause — The green graph corresponds to “most scientists think global warming is happening (%).” The black graph corresponds to “there is a lot of disagreement among scientists (%)”. The yellow graph corresponds to “Most scientists think global warming is NOT happening (%)”. Graph taken from the Yale Program on Climate Change Communication.

However, only one in five Americans (20%) understand that nearly all climate scientists (more than 90%) think that human-caused global warming is happening. The aforementioned Dana Nuccitelli refers to this in his book Climatology versus Pseudoscience as the consensus gap. Again, this large discrepancy between public perception and reality makes the consensus gap a super fact. Research has shown that this discrepancy has a large impact on people’s other beliefs regarding global warming.

This is bar graph. It shows that 2% believe the answer is 0-10%, 2% believe the answer is 11-20%, 3% believe the answer is 21-30%, 3% believe the answer is 31-40%, 8% believe the answer is 41-50%, 7% believe the answer is 51-60%, 7% believe the answer is 61-70%, 13% believe the answer is 71-80%, 13% believe the answer is 81-90%, 20% believe the answer is 91-100%, 22% don’t know | Scientists Agree that Global Warming is happening and that we are the Cause — The question was, To the best of your knowledge what percentage of climate scientists think that human-caused global warming is happening? Graph taken from the Yale Program on Climate Change Communication.

Why is there a Consensus Gap?

In his book Climatology versus Pseudoscience Dana Nuccitelli explains that a relatively small group of so-called climate skeptics, or more accurately called climate contrarians have received a lot of attention from media. Even though their science is bad, and they’ve published their error ridden papers in obscure or discredited journals, and the fact that their predictions have failed repeatedly many times over, they have had an enormous influence on public discourse. Conservative politicians, and many talk show hosts are blindly devoted to their falsehoods, whilst real scientists are being attacked.

It is not just rightwing media who are using them for their purposes, but mainstream media are giving the contrarians undue attention as well. Sensationalism is one issue. A science contrarian claiming that all the climate scientists are wrong, and that he is the only one who finally got it right is a lot more interesting of a story than a repeat of the consensus. Another issue is false balance. Journalist should not feel that they must give equal time to evidence-based science and nonsense, but that is often the case. To read my review of this book click here.

The Oregon Petition

I am mentioning the Oregon petition because I fell for it myself. The Oregon petition was an official looking petition circulated by climate contrarians, claiming that there is no evidence that human-caused global warming will cause catastrophic heating of earth’s atmosphere and disruption of earth’s climate, and that adding more carbon dioxide to the atmosphere would even be beneficial for plants and animals. It got an impressive number of signatures, 32,000 after some years.

However, it turned out that the signatories rarely had climate expertise, and were not scientists, and the survey listed many falsified names such as the names of the Spice Girls and several fictional characters. Less than 200 of the signatories were climate researchers.

It was a con, but it was touted in a lot of media as the truth. I saw it over and over and I believed it. I was later surprised to learn that it was a con and that a scientific consensus existed on global warming / climate change. Learning that I had been bamboozled on this matter was one of the red flags that prompted me to start doing some fact checking on the issue global warming.

To see the other Super Facts click here

Many Popular Environmental Actions Are Ineffective

Super fact 33: Actions such as eating locally, buying organic produce, using paper straws, and recycling can be good for the environment but can also be worse for the environment and these actions often have a much smaller positive impact than alternative rarely considered actions. What are popular actions for the environment is often different from what is effective.

I consider this a super fact because the beliefs regarding what is good for the environment and what is bad for the environment and what has a significant impact and what has not, are often based on popular trends and culture rather than knowledge. We need to educate ourselves. Following trends is not the answer to good stewardship of the planet.

A big green hand is depicted to symbolize the protection of the environment, where climate-friendly topics are also depicted, such as wind turbines and recycling symbols | Many Popular Environmental Actions Are Ineffective — This content was generated by an Artificial Intelligence (AI) system. Asset id: 2531547331

Is Locally Grown Food Really Better for the Environment?

As I explained in this post eating locally is not necessarily ecological. Agricultural products that are grown off season or in non-native environments are often grown in greenhouses, which require a lot of energy and generate significantly more emissions than shipping the produce across oceans would. This is especially true for crops like tomatoes, cucumbers, mangoes and bananas, that require warmer climates to be grown in open fields.

Red cherry tomatoes | Many Popular Environmental Actions Are Ineffective — From pexels.com by Julia Nagy.

In some cases, the crop requires significant water resources or chemical inputs to thrive and may not be suitable for warmer climates, for example, apples. Some crops, like avocados or almonds require a lot of water but despite that they are grown in dry places like California (80% of California’s freshwater is used for agriculture). From an environmental perspective it would be better to grow these crops in a suitable environment and then transport them.

Is Eating Organic Really Good for the Environment?

As explained in this post eating organic is not necessarily ecological. Despite strong public perception of organic agriculture producing better environmental outcomes, conventional agriculture often performs better on environmental measures including land use, greenhouse gas emissions, and pollution of water bodies. There are, however, some contexts where organic agriculture may be better for the environment.

The graph below gives an overview of the environmental impact of various types of crops grown organically and conventionally. As you can see organic crop often require double as much land compared to conventionally grown crops. It is complicated.

The graph shows the six food groups and their impact across greenhouse gas emissions, land use, eutrophication potential, acidification potential and energy usage | Many Popular Environmental Actions Are Ineffective — Shown is the relative environmental impact of organic and conventional agriculture across various ecological and resource indicators based on a meta-analysis of 164 published life-cycle analyses (LCAs) across 742 agricultural systems. Roughly, lower in the graph means organic is better and higher up in the graph means conventional farming is better. Data source: Clark & Tilman (2017) – Comparative analysis of environmental impacts of agricultural production systems, agricultural input efficiency, and food choice. In Environmental Research Letters. The data visualization is available at OurWorldinData.org<<Link-10>>. There you can find research and more visualizations on this topic. Licensed under CC BY-SA by the authors Hannah Ritchie and Max Roser.

What really matters though is the type of food you eat, not whether it is organic or not. For example, beef (from beef herd) causes emissions 188 times larger than nuts do for the same amount of protein provided. Another thing to note is that if you eat 300 steaks per year you will have a 100 times larger environmental impact from your meat eating compared to someone who eats 3 steaks per year. You don’t have to become a vegetarian to have a smaller environmental impact but quantity matters.

Is Recycling Important?

The common perception that recycling is one of the best things you can do for the environment is not correct. Its impact is often not very large and if not done properly it can be counterproductive. If you throw a greasy pizza box in the recycling, you can ruin the entire batch.

Surveys across 21,000 adults in 30 countries showed that the two actions among twelve that people believed saved the most greenhouse gases were recycling (59%) and upgrading lightbulbs (36%). As it turns out, those two saved the least greenhouse gases among the twelve options. The option saving the most greenhouse gases among the 12 was giving up an SUV, which saved 18 times as much greenhouse gases as recycling. 17% of respondents picked that one.

A filled recycling bag — Photo by Anna Shvets on Pexels.com

According to Our World in Data (and the book Not the End of the World page 114<<Link-6>>), which is based on this research, giving up an average SUV for a sedan would save 3.6 metric ton, or 22.5% of the carbon emissions for the average American. Switching to a plant-based diet would save 2.2 metric ton per person, or 13.8%. Recycling comes in at a savings of 0.2 metric tons according to the same data. EPAs estimates are slightly higher but still low in comparison.

Plastic straws versus paper straws

Producing a plastic straw requires 39 kilojoules of energy and produces 1.5 grams of carbon dioxide emissions. However, producing a paper straw requires 96 kilojoules of energy and produces 4.1 grams of carbon dioxide emissions. So, plastic straws are better for the environment from that perspective. However, this could be compared to a typical passenger vehicle, which emits about 4.6 metric tons of CO2 per year according to EPA. That corresponds to more than 3 million plastic straws and more than one million paper straws.

According to the same article the average passenger vehicle emits about 400 grams of CO2 per mile. So, driving just one mile corresponds to hundreds of plastic straws and paper straws.

Plastic straws — Photo by Christopher on Pexels.com

One advantage of paper straws is that they are easier to recycle, at least under ideal circumstances. Unfortunately, they often get soggy, and recycling plants don’t want that so they often throw them out. Another advantage is that paper straws decompose and don’t end up in our ocean.

However, not only are straws very small items, most of the plastic pollution in the ocean does not come from north America(1%) or Europe (1%). Paper straws versus plastic straws seem like a complex riddle but it may not be an important one. Whether you drive more or drive less is probably a lot more important.

Plastic bags versus paper bags

As with plastic straws versus paper straws plastic bags versus paper bags is a complicated question. From an environmental perspective they both have advantages and disadvantages. Plastic bags are less carbon intensive to produce, are easier to reuse several times, and the production of plastic bags require on average four times less energy than the production of paper bags.

On the other hand, paper bags are decomposable and easier to recycle. However, the chemicals and fertilizers used in producing paper bags create additional harm to the environment. It is a complicated question.

Whale Shark swimming in the ocean about to swallow a plastic bag. — Plastic Ocean pollution. Whale Shark filter feeds in polluted ocean, ingesting plastic. Asset id: 1120768061 by Rich Carey

Having a Significant and Positive Impact on the Environment

Some of the allegedly sustainable practices and actions mentioned above are counter productive and others have a very small effect, for example, carbon emissions savings that are a few grams. According to the “Our World Data” and the book “Not the End of the World” page 114, a compilation of data research, some actions that you can take that will significantly reduce carbon emissions are (savings in metric tons per year, for flight it is per trip):

Giving up an SUV 3.6 tons
Go car free (average car) 2.4 tons
Switch to plant-based diet 2.2 tons
Avoid transatlantic flights 1.6 tons
Buy green energy 1.5 tons
Switch to electric car (from average sedan) 1.2 tons
Switch from electric car to none 1.2 tons
Avoid medium flight 0.6 tons (1,700 miles each way going and returning)
Laundry in cold water 0.25 tons
Hand-dry clothing 0.2 tons
Recycle 0.2 tons
Upgrade light bulbs 0.1 tons

As you can see in the graphs below, the largest contributor of greenhouse gas emissions in the World and in the United States is electricity and heat. Unfortunately, the composition of the electric grid is something we as consumers have very little control over. We can save energy, get solar panels for our roof, or buy our electricity from green energy companies, but we cannot easily change the composition of the grid. Energy companies and politicians must do that.

However, we can make our voices heard by calling and writing to our representatives. This might be the single most impactful action that you as an individual can take. Your congressman, senator, or state legislator will probably not read your letter. They have hundreds of thousands or millions of constituents and get lots of letters every day. What is likely to happen is that a staff member will skim the letter and note the concern in a database.

Just make sure that your letter is politely written so it does not go in the wastebasket. Also make sure that you are a constituent. Writing to Ted Cruz when you live in Florida is not going to have an impact. They are interested in finding out what the concerns of their constituents are and according to staff members and other information I have come across, this really has an impact.

The largest contributor of greenhouse gas emissions in the World is electricity and then comes Transport. After that comes manufacturing and construction, agriculture, industry, fugitive emissions, buildings, waste, land-use change and forestry, aviation and shipping, other fuel combustion | Many Popular Environmental Actions Are Ineffective — Data source : Climate Watch (2024). Note : Land use emissions can be negative. OurWorldinData.org/co2-and-greenhouse-gas-emissions| CC BY

The largest contributor of greenhouse gas emissions in the US is electricity and heat but it has gone down. Transport is number two. Then comes buildings, manufacturing and construction, fugitive emissions, agriculture, industry, waste, aviation and shipping, other fuel combustion, land-use change and forestry | Many Popular Environmental Actions Are Ineffective — Data source : Climate Watch (2024). Note : Land use emissions can be negative. OurWorldinData.org/co2-and-greenhouse-gas-emissions| CC BY

Conclusion

The survey mentioned above showed that among the twelve environmental actions an individual could take, the one with the second to smallest positive impact was the one that the majority thought had the biggest positive impact, despite it having a relatively tiny impact. The actions that could really make a huge difference were hardly considered.

We, the public, are very bad at determining what is good or bad for the environment and what has a significant and positive impact or not, even though the data is out there and we easily can look it up. Maybe the biggest positive impact one could have on the environment is to look up the facts and get better educated.