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Tag: carbon dioxide (CO2)

Published on Leave a comment on Record High Levels of Carbon Dioxide In Our Atmosphere

The US government would like to shut the Mauna Loa observatory in Hawaii down because it measures levels of atmospheric CO2, a measure of climate change. Well, unlike the US government, the rest of the world is very, very concerned about increasing CO2 levels in our atmosphere, and what increasing levels of greenhouse gases are doing to our climate and environment.

The United Nation's World Meteorological Organization (WMO) does not hesitate to loudly announce that CO2 levels are steadily rising, with record high levels in 2024, and what this means for our world going forward. Their words: it's "turbocharging our climate and leading to more extreme weather".

The important thing to know is that CO2 levels keep increasing, and each year new record high levels are set. Highest ever levels were in 2024. A big reason CO2 levels are increasing is due to the burning of fossil fuels (oil, gas, coal). The increase in wildfires is also contributing.

Excerpts from New Scientist: CO2 levels in Earth's atmosphere jumped by a record amount in 2024

Atmospheric carbon dioxide levels jumped by a record amount in 2024 to push concentrations to their highest point since measurements began, the UN’s World Meteorological Organization (WMO) has reported.

Between 2023 and 2024, the global average concentration of CO2 surged by 3.5 parts per million (ppm) to reach 423.9 ppm, the WMO has said. This is the largest increase since modern measurements started in 1957 and is well in excess of the 2022 to 2023 increase of 2.3 ppm. ...continue reading "Record High Levels of Carbon Dioxide In Our Atmosphere"

Published on Leave a comment on Carbon Dioxide Levels Still Going Up Even When Not Monitored

If there is no data about something, then there is no problem because there is no data that says whether there is a problem or not. Duh... It's the new official US government policy (ignorance is bliss!), whether there is a government shut-down or not.

Unfortunately, in 2025 the US has stopped data collection and actually eliminated many  departments and sites that have been collecting information - whether diseases, losses due to major disasters (which are increasing due to climate change), toxics and pollutants in our air and water, and even how much carbon dioxide is in the air.

The US government announced in 2025 that it would close the Mauna Loa observatory (the Global Monitoring Laboratory) that measures carbon dioxide in the air. Carbon dioxide levels have been steadily increasing since measurements started, due to the burning of fossil fuels (climate change!). Well, with the government shutdown, this is what one sees when going to the site: Nothing much. Many of the old measurements are no longer there, as well as nothing new being graphed.

Luckily, at this point not all data has been removed. As you click through the site, can still see that in August 2025 the carbon dioxide levels were 425.48 ppm and that 10 years ago the weekly level was 398.62 ppm. It's going up year by year.

From Global Monitoring Laboratory: Trends in Atmospheric Carbon Dioxide (CO2)

Published on Leave a comment on The Erasing Of Climate Science

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"

Published on Leave a comment on Carbon Dioxide Levels In Atmosphere Keep Rapidly Rising

It shouldn't be a surprise to read that carbon dioxide levels in the atmosphere are surging and accumulating faster than ever. In May, it surged to 427 parts per million (426.90 ppm) - while in 1960 it was about 320 ppm.  It's depressing, and it doesn't bode well for our future.

These high levels of carbon dioxide are a major driver of the record-setting heat we've been experiencing in recent years. Carbon dioxide is the gas that accounts for the majority of global warming (yes, climate change) and is caused by human activities. The human activities are burning of fossil fuels, such as gas and oil - in vehicles, coal-fired plants, large industrial operations, ships, airplanes, rockets.

Graph of carbon dioxide levels increasing Credit: NOAA

Excerpts from NOAA (National Oceanic and Atmospheric Administration): During a year of extremes, carbon dioxide levels surge faster than ever

Carbon dioxide is accumulating in the atmosphere faster than ever — accelerating on a steep rise to levels far above any experienced during human existence, scientists from NOAA and the Scripps Institution of Oceanography at the University of California San Diego announced today. ...continue reading "Carbon Dioxide Levels In Atmosphere Keep Rapidly Rising"

Published on Leave a comment on We’re On Track For Each Summer to Be Hotter Than Ever

This past Monday (July 3) the average temperature on Earth was the hottest day ever recorded. But then...Tuesday broke Monday's records for hottest day for Earth. It hit 62.92 degrees Fahrenheit (17.18 degrees Celsius)

Welcome to the new normal. In fact, this summer could be the coolest summer of the rest of your life! Get ready for more and longer heat waves. For summer to start earlier, last longer, and be hotter.

Why is this occurring? Climate change. All the scientific predictions are coming true. And yet the US government, politicians, big business, and all of us are refusing to take real action. We need a huge reduction of fossil fuel emissions and new technologies to pull carbon dioxide out of the air to stop extreme climate changes from occurring.

Several good articles about what is going on: 1) From The Guardian: Tuesday was world’s hottest day on record – breaking Monday’s record

World temperature records have been broken for a second day in a row, data suggests, as experts issued a warning that this year’s warmest days are still to come – and with them the warmest days ever recorded.

2) From the Washington Post: This July 4 was hot. Earth’s hottest day on record, in fact.

... some scientists believe July 4 may have been one of the hottest days on Earth in about 125,000 years, due to a dangerous combination of climate change causing global temperatures to soar, the return of the El Niño pattern and the start of summer in the Northern Hemisphere.  ...continue reading "We’re On Track For Each Summer to Be Hotter Than Ever"

Published on Leave a comment on Carbon Dioxide Levels Are Higher Than Ever In the Atmosphere

Holy moly! Our carbon dioxide levels are rising, really rising! Every year there is a new high, and this year is no exception.

According to NASA, in May at the Mauna Observatory in Hawaii the carbon dioxide measurement was 421 ppm. It's called the "global atmospheric carbon dioxide concentration". This week the reading at Mauna Launa Observatory is 423.96 ppm. It's going up! And yup, this is climate change.

From the NASA Global Climate Change page on Carbon Dioxide (go to the link to see the graphs, and prepare to be shocked).

Carbon Dioxide  LATEST MEASUREMENT:  May 2023     421 ppm

Key Takeaway: Carbon dioxide in the atmosphere warms the planet, causing climate change. Human activities have raised the atmosphere’s carbon dioxide content by 50% in less than 200 years.

Carbon dioxide (CO2) is an important heat-trapping gas, or greenhouse gas, that comes from the extraction and burning of fossil fuels (such as coal, oil, and natural gas), from wildfires, and from natural processes like volcanic eruptions.

Since the beginning of industrial times (in the 18th century), human activities have raised atmospheric CO2 by 50% – meaning the amount of CO2 is now 150% of its value in 1750. This is greater than what naturally happened at the end of the last ice age 20,000 years ago.

The animated map shows how global carbon dioxide has changed over time. Note how the map changes colors as the amount of CO2 rises from 365 parts per million (ppm) in 2002 to over 400 ppm currently. (“Parts per million” refers to the number of carbon dioxide molecules per million molecules of dry air.) These measurements are from the mid-troposphere, the layer of Earth's atmosphere that is 8 to 12 kilometers (about 5 to 7 miles) above the ground.

One big concern that needs to be addressed: What will high carbon dioxide levels do to our thinking processes? Over the years carbon dioxide levels have been rising, and are now at levels not experienced in several million years!

Think of a "stuffy room" where it is harder to think - this can already occur starting at about 600 ppm of CO2, and known to occur at 945 ppm and higher (in rooms with many people in them). While current CO2 levels are below that, we are faced with the possibility that if they keep rising we will get there eventually - and there will be no escape from the "stuffy room" feeling!

...continue reading "Carbon Dioxide Levels Are Higher Than Ever In the Atmosphere"

Published on Leave a comment on Carbon Dioxide Levels Highest In 4 Million Years

Carbon dioxide levels in the atmosphere reached a new high in May 2021 - 419 parts  per million (ppm). This monthly average is the highest level in more than 4 million years! Yikes! (By the way, last year the highest level ever recorded occurred in May 2020.) Well...  we topped that number this year.

The carbon dioxide levels slightly fluctuate daily (they are measured at the Mauna Loa Observatory). But over the years they have been rising (an average of 2.37 ppm per year in the last decade), and each year the concentrations of carbon dioxide in the air are enough to set a new record. Each year more carbon dioxide (a greenhouse gas) piles up in the atmosphere and oceans, where it remains for thousands of years.

This is of concern not just because the earth is warming (resulting in more extreme weather, wildfires, drought, flooding), but also what higher and higher carbon dioxide levels might do to our thinking processes (thinking gets worse at high levels - think of a stuffy room where it's harder to think). Yes, this is climate change.

Pieter Tans, a senior scientist with NOAA’s Global Monitoring Laboratory said:

“We are adding roughly 40 billion metric tons of CO2 pollution to the atmosphere per year,” said Tans. “That is a mountain of carbon that we dig up out of the Earth, burn, and release into the atmosphere as CO2 - year after year. If we want to avoid catastrophic climate change, the highest priority must be to reduce CO2  pollution to zero at the earliest possible date.”

The US has rejoined the Paris Treaty (good), but much, much more needs to be done to stop emitting carbon dioxide. Solar energy, wind energy, and other alternative fuels. We can do it if we really want to.

See latest reading of atmospheric carbon dioxide levels - watch it rise month by month. (Check out all the links, and be horrified.)

Rising atmospheric carbon dioxide levels. Credit: NOAA Global Monitoring Laboratory

Excerpts from NPR: Carbon Dioxide, Which Drives Climate Change, Reaches Highest Level In 4 Million Years

The amount of carbon dioxide in Earth's atmosphere reached 419 parts per million in May, its highest level in more than four million years, the National Oceanic and Atmospheric Administration announced on Monday.  ...continue reading "Carbon Dioxide Levels Highest In 4 Million Years"

Published on Leave a comment on We Need to Discuss the Effects On Humans Of Rising Carbon Dioxide Levels

Carbon dioxide levels in the atmosphere reached a new high in 2020 - and this in spite of the COVID-19 world-wide lockdowns. Yikes!

In May 2020 the carbon dioxide levels in our atmosphere reached a peak of 417.1 ppm (parts per million)! The carbon dioxide levels slightly fluctuate daily (on November 30, 2020 they were at 413.81 ppm at the Mauna Loa Observatory). But over the years they have been rising (an average of 2.37 ppm per year in the last decade), and are now at levels not experienced in several million years!

This is of concern not just because the earth is warming (resulting in more extreme weather), but also what higher and higher carbon dioxide levels might do to our thinking processes. Think of a "stuffy room" where it is harder to think - this can already occur starting at about 600 ppm of CO2, and known to occur at 945 ppm and higher (in rooms with many people in them). While current CO2 levels are below that, we are faced with the possibility that if they keep rising we will get there eventually - and there will be no escape from the "stuffy room" feeling!

Yes, there is research on this topic - studies suggest that at high levels of carbon dioxide our thinking gets worse. A University of Colorado study reports that a growing body of evidence finds that as CO2 levels increase, there are effects on thinking (cognitive functioning), including decision making, planning, and complex strategic thinking. As carbon dioxide levels rise to 945 ppm and higher, the effects are even more significant, especially with mentally demanding tasks.

There are also physical effects of rising carbon dioxide exposure in humans: increased CO2 in the lungs, in the blood, and in the brain (which is associated with reduced oxygen and brain activity), increased sleepiness and anxiety (both of which harm cognitive function), and acidosis (lowered blood pH - which leads to symptoms such as restlessness and a rise in blood pressure). One study in juvenile rats found "reduced levels of neuroprotective growth factor", which harmed brain development and impaired learning and memory.

What about babies and children? Developing fetuses? The elderly? The sick?  All unknown. Also, studies looking at effects are short term, but our future (if not changed) will have us exposed to higher and higher levels of CO2 all the time.

Further information: Scientists from NOAA and Scripps Institution of Oceanography monitor the values at the Mauna Loa Observatory and found that monthly carbon dioxide (CO2) values at Mauna Loa first breached the 400 ppm threshold in 2014. Go look at the graph and click on all the links. Yes, it's scary unless we all make a huge effort to cut global CO2 emissions.

World Meteorological Association: Carbon dioxide levels continue at record levels, despite COVID-19 lockdown

NOTE: The atmosphere  is the air and gases in it that surround the earth.

Published on Leave a comment on Rising Carbon Dioxide Levels May Harm Our Thought Processes

The possibility that rising carbon dioxide levels could eventually result in harmful effects on people's thinking (cognition) is scary. Currently levels are above 400 ppm and rising steadily each year. The Intergovernmental Panel on Climate Change predicts that outdoor CO2 levels could climb to 930 ppm by 2100, which means urban and indoor levels would be even higher.

Studies suggest that at high levels of carbon dioxide our thinking gets worse. A University of Colorado study reports that a growing body of evidence finds that as CO2 levels increase, there are effects on thinking (cognitive functioning), including decision making, planning, and complex strategic thinking. As carbon dioxide levels rise to 945 ppm and higher, the effects are even more significant, especially with mentally demanding tasks.

Think of the air in stuffy conference rooms or offices, which studies show has a negative effect on different aspects of our thought processes. The stuffy air is from higher levels of CO2. What if in the future this is our regular "fresh air", with no possibility of escape? The best case scenario is that we do not allow carbon dioxide levels to get that high by reducing fossil fuel emissions. Starting now.

From Science Daily: Rising carbon dioxide causes more than a climate crisis -- it may directly harm our ability to think

As the 21st century progresses, rising atmospheric carbon dioxide (CO2) concentrations will cause urban and indoor levels of the gas to increase, and that may significantly reduce our basic decision-making ability and complex strategic thinking, according to a new CU Boulder-led study. By the end of the century, people could be exposed to indoor CO2 levels up to 1400 parts per million -- more than three times today's outdoor levels, and well beyond what humans have ever experienced.  ...continue reading "Rising Carbon Dioxide Levels May Harm Our Thought Processes"