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Why do you expect seasonal variation in the atmospheric CO2 levels?
Wiki User
∙ 6y ago
Global carbon dioxide levels are highest in May and lowest in October.
The Northern Hemisphere has much more land for vegetation to grow on compared to the Southern Hemisphere. Carbon dioxide (CO2) builds up slowly during the northern winter, when trees and plants are dormant. Then in May everything begins to grow, and CO2 is taken out of the atmosphere, so the levels start coming down. In October and November vegetation stops growing, and in its dormant state it stops absorbing CO2, so the carbon in the atmosphere increases. These levels go up and down like this every year.
The readings for 1958, 1959 and 1960 show this:
1960: May: 320.5 ppm: October: 314.5 ppm
1959: May: 320.0 ppm: October: 313.5 ppm
1958: May: 318.0 ppm: October: 313.0 ppm
Ppm means parts per million, so 320 ppm is the same as 0.032 percent (per hundred).
The recent readings for May are:
2011: 394.35 ppm
2010: 393.22 ppm
2009: 390.18 ppm
See the graph at the link below.
Wiki User
∙ 6y ago
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Which process is most responsible for the increase in early Earth's atmospheric oxygen levels?
precipitation
What has happened to global temperatures as atmospheric levels of carbon dioxide have increased?
They both have increased.
What is the relationship betwee carbon dioxide and atmospheric temperature?
CO2 is a greenhouse gas, meaning that as atmospheric levels of it rise, the temperature should gradually increase. This has, in fact, been observed.
What natural source of air pollution is caused by plant reproduction and has the highest atmospheric levels in spring?
pollen
Why will a rise in temperature result in a rise of sea levels?
Atmospheric pressure will rise due to the heat level
What is an increase in the atmospheric levels of carbon dioxide is the biggest contributor?
An increase in the atmospheric levels of carbon dioxide is the biggest contributor to global warming.
An increase in the atmospheric levels of carbon dioxide is the biggest contributor to What?
An increase in the atmospheric levels of carbon dioxide is the biggest contributor to global warming.
Which of Earth's atmospheric levels is the coldest?
mesosphere is the coldest
What has the author Jeffery Donald Auch written?
Jeffery Donald Auch has written: 'Seasonal variation and rain disturbance impacts on benthic stream macroinvertebrate dynamics' -- subject(s): Invertebrates, Benthic animals, Effect of water levels on, Research
Would you expect a higher atmospheric pressure at the top of mountain in Alaska's Denali national park or near sea level in Florida's everglades national park?
Since there is more air pressing down from upper levels of the atmosphere, Florida's Everglades park would have the greater atmospheric pressure
Would you expect a higher atmospheric pressure at the top of a mountain in Alaska's Denali national park or near sea level in Florida's Ever glades national park?
Since there is more air pressing down from upper levels of the atmosphere, Florida's Everglades park would have the greater atmospheric pressure
What effect does increase have on atmospheric levels of carbon?
An increased level of atmospheric carbon can have a massive impact on photosynthesis. It can boost photosynthesis in plants for example.
What are some atmospheric conditions during the mesozoic era?
low oxygen levels
What happens when carbon dioxide levels decrease in the atmosphere?
The atmospheric temperature will decrease
Is photosynthesis responsible for atmospheric CO2?
Photosynthesis is responsible for lowering the levels of atmospheric CO2 since it is a requirement to make glucose. Cellular respiration produces CO2 as a by-product, so it is responsible for some atmospheric CO2.
Which process is most responsible for the increase in early Earth's atmospheric oxygen levels?
precipitation
What has happened to global temperatures as atmospheric levels of carbon dioxide have increased?
They both have increased.
