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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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What happens when carbon dioxide levels decrease in the atmosphere?

When carbon dioxide levels decrease in the atmosphere, it can lead to a cooling effect. This is because carbon dioxide is a greenhouse gas that traps heat in the atmosphere. A decrease in carbon dioxide levels could potentially impact climate patterns, biodiversity, and ocean acidity.


Why should the amount of carbon in the atmosphere today be reduced?

The present levels of carbon dioxide dioxide in the atmosphere are causing global warming and climate change.


Does cyanobacteria increase the levels of carbon dioxide in the atmosphere?

Yes, cyanobacteria can increase the levels of carbon dioxide in the atmosphere through the process of respiration. However, cyanobacteria also play a significant role in reducing atmospheric carbon dioxide levels through photosynthesis, where they convert carbon dioxide into organic compounds. Overall, the impact of cyanobacteria on atmospheric carbon dioxide levels depends on the balance between these two processes.


How does the concentration of carbon dioxide in the atmosphere affect climate?

Yes. Carbon dioxide is a greenhouse gas. If levels of it in the atmosphere are higher than normal, then they trap more heat. This is causing global warming, and the world warming is causing changes in climate.


What has caused Carbon Dioxide levels to steadily increase since the 1800s?

The burning of fossil fuels (coal & oil) is the primary cause of the increase in carbon dioxide levels in the atmosphere.

Related Questions

How does deforestation contribute to the rise in carbon dioxide levels in the atmosphere?

Deforestation contributes to the rise in carbon dioxide levels in the atmosphere because trees absorb carbon dioxide during photosynthesis. When trees are cut down or burned, the stored carbon is released back into the atmosphere, increasing the overall amount of carbon dioxide present. This leads to higher levels of carbon dioxide in the atmosphere, which contributes to global warming and climate change.


What happens when carbon dioxide levels decrease in the atmosphere?

When carbon dioxide levels decrease in the atmosphere, it can lead to a cooling effect. This is because carbon dioxide is a greenhouse gas that traps heat in the atmosphere. A decrease in carbon dioxide levels could potentially impact climate patterns, biodiversity, and ocean acidity.


What will not increase the levels of carbon dioxide in the atmosphere?

Not burning carbon compounds.


Will the amount carbon dioxide the atmosphere soon be greater than the Amount of oxygen?

No, the amount of oxygen in the atmosphere is much greater than the amount of carbon dioxide. The current levels of carbon dioxide are approximately 0.04% of the atmosphere, while oxygen levels are around 21%.


Cyanobacteria increased the levels of carbon dioxide in the atmosphere.?

true


Why should the amount of carbon in the atmosphere today be reduced?

The present levels of carbon dioxide dioxide in the atmosphere are causing global warming and 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.


Does cyanobacteria increase the levels of carbon dioxide in the atmosphere?

Yes, cyanobacteria can increase the levels of carbon dioxide in the atmosphere through the process of respiration. However, cyanobacteria also play a significant role in reducing atmospheric carbon dioxide levels through photosynthesis, where they convert carbon dioxide into organic compounds. Overall, the impact of cyanobacteria on atmospheric carbon dioxide levels depends on the balance between these two processes.


The temperature of its atmosphere is increased by high levels of carbon dioxide.?

venus


How does the process of photosynthesis affect carbon dioxide concentrations in the atmosphere during a typical year?

Photosynthesis uses carbon dioxide as a raw material where carbon dioxide is fixed into organic molecules. This process lowers the level of carbon dioxide in the atmosphere. The seasonal fluctuation of carbon dioxide levels during a year may be caused by increased photosynthesis during spring and summer.


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

Carbon Dioxide


How could cutting down trees lead to the build up of carbon dioxide in the atmosphere?

Trees absorb carbon dioxide from the atmosphere during photosynthesis. When trees are cut down and not replaced, this carbon dioxide is no longer absorbed, leading to an increase in its levels in the atmosphere. Additionally, when trees are burnt or decompose, the stored carbon is released back into the atmosphere as carbon dioxide.