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What is the trend in atmospheric CO2 seasonally and over the past 50 years?
Wiki User
∙ 9y ago
CO2 is rising rapidly. It is at least 25 percent higher than it was 400,000 years ago. CO2 increases slightly in the spring and summer and decreases during the fall and winter months.
Wiki User
∙ 9y ago
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c
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What is the most likely outcome of the use of fossil fuels is not decreased over the next 50 years?
increase in atmospheric CO2 and increase in surface temperature
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