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About 260 ppm. According to ice core samples, CO2 values ranged between 250 to 280 ppm over the past 800,000 years, up until 1700.

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When you burn vegetation how does it affect carbon dioxide levels in the atmosphere?

Burning vegetation adds to the carbon dioxide levels in the atmosphere. However, that carbon dioxide was recently removed from the air when the plants were growing, so burning vegetation is carbon neutral.Burning fossil fuels (coal, oil and natural gas), of course, releases extra carbon dioxide that has been hidden away for 300 million years.


Can the natural cycle of carbon dioxide emissions increase carbon dioxide concentrations in the atmosphere?

No, the natural cycle of carbon dioxide (CO2) moves through the land, oceans and atmosphere, and has done for millions of years. It is able to remove all the natural carbon in the air (and part of the global warming carbon as well). It is the burning of fossil fuels (coal, oil and natural gas) in industry, transport and the generation of electricity that releases carbon that has been hidden underground for millennia that is increasing the carbon concentrations in the atmosphere.


The increase in carbon dioxide in your atmosphere over the last 150 years was caused primarily by?

The increase in carbon dioxide in the atmosphere over the last 150 years can primarily be attributed to human activities, particularly the burning of fossil fuels such as coal, oil, and gas for energy. Deforestation and land use changes have also contributed to this increase by reducing the planet's ability to absorb carbon dioxide from the atmosphere.


How does the greenhouse effect increase the amount of carbon dioxide in the atmosphere?

The greenhouse effect does not increase the amount of carbon dioxide in the atmosphere. The greenhouse effect happens because of the carbon dioxide (and other greenhouse gases) in the atmosphere.It is the burning of fossil fuels that increases the amount of carbon dioxide in the atmosphere. Burning coal, oil and natural gas releases age-old carbon dioxide that was laid down underground millions of years ago, so letting it free now puts an impossible burden on the carbon cycle, which cannot remove it.


What is an increase in CO2?

This means an increase in the amount of carbon dioxide (CO2) in the atmosphere. There is a normal balance of carbon dioxide in the atmosphere. Trees and green plants soak it up, and then when the trees rot or are burnt the carbon dioxide goes back into the atmosphere. However, more than 200 years ago we began seriously burning coal and oil. This released carbon dioxide that had been trapped millions of years ago. So over the years the amount of this gas in the atmosphere has been increasing. Most climate scientists agree that this increase in carbon dioxide is contributing to climate change and global warming.

Related Questions

Starting billions of years ago algae lowered the levels in the atmosphere?

Carbon Dioxide


What element transformed carbon dioxide atmosphere a billion years ago to what you breathe?

Ancient photosynthetic bacteria transformed the carbon dioxide atmosphere into oxygen through the process of photosynthesis. Over billions of years, these organisms released oxygen as a byproduct, eventually leading to the oxygen-rich atmosphere we have today that you breathe.


What caused the increase in carbon dioxide in your atmosphere over the last 150 years?

The primary reason for the increase in carbon dioxide levels in the Earth's atmosphere over the last 150 years is the burning of fossil fuels such as coal, oil, and natural gas. This releases carbon dioxide that had been locked away for millions of years into the atmosphere, leading to a rise in atmospheric CO2 levels and contributing to climate change.


When you burn vegetation how does it affect carbon dioxide levels in the atmosphere?

Burning vegetation adds to the carbon dioxide levels in the atmosphere. However, that carbon dioxide was recently removed from the air when the plants were growing, so burning vegetation is carbon neutral.Burning fossil fuels (coal, oil and natural gas), of course, releases extra carbon dioxide that has been hidden away for 300 million years.


How does respiration affect the amount of carbon dioxide in the atmosphere?

Respiration, breathing, has no effect on the amount of carbon dioxide in the atmosphere. This is part of the natural carbon cycle. Burning fossil fuels (coal, oil and natural gas) releases carbon dioxide that has been hidden away for millions of years. This extra gas is increasing in the atmosphere.


Can the natural cycle of carbon dioxide emissions increase carbon dioxide concentrations in the atmosphere?

No, the natural cycle of carbon dioxide (CO2) moves through the land, oceans and atmosphere, and has done for millions of years. It is able to remove all the natural carbon in the air (and part of the global warming carbon as well). It is the burning of fossil fuels (coal, oil and natural gas) in industry, transport and the generation of electricity that releases carbon that has been hidden underground for millennia that is increasing the carbon concentrations in the atmosphere.


What 3 gases made up the earths atmosphere a lot of years ago?

carbon dioxide, sulphur dioxide and still nitrogen


Why is there more carbon dioxide in Earth's atmosphere?

There is more carbon dioxide in the atmosphere now because we have been burning fossil fuels (coal, oil and natural gas) for more than 200 years. This burning adds long-hidden carbon dioxide, so it is too much for the carbon cycle to completely recycle.


How would the amount of carbon dioxide in the atmosphere change if their is no plants?

There would be significantly more CO2 in the atmosphere because plants take in CO2 during photosynthesis and fix the carbon into glucose.


How can using bio fuel help to reduce the amount of carbon dioxide in the atmosphere?

Bio fuel emits carbon dioxide (CO2) that was removed from the atmosphere when the plant grew (this year, probably). Fossil fuels (coal, oil and natural gas) emit carbon dioxide that has been hidden away for millions of years. So using biofuel instead of fossil fuel means that less carbon dioxide is added to the atmosphere.


Does Mars atmosphere change from season to season?

Yes, Mars' atmosphere does change from season to season. During the planet's winter, carbon dioxide freezes out of the atmosphere, causing it to thin. In summer, this carbon dioxide sublimes back into the atmosphere, thickening it again.


What is the problem with a small increase in carbon dioxide concentration in the atmosphere?

A small amount of carbon dioxide is all it takes to keep the earth comfortably warm for millions of years. A small increase in the amount of carbon dioxide in the atmosphere is all it takes to cause global warming and threaten the future of the human race.