(Answered) How much does the atmosphere weigh over each square

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How much does the atmosphere weigh over each square kilometer (km²)? Recall that 10⁶m²= 1 km².

Thus according to these calculations, we are adding CO₂to the atmosphere at the rate of approximately Answer: __________ percent per year. At this rate, can we account for the observed increase in CO₂ in the atmosphere since 1950s? CO₂content in 1959 was measured at 316 ppm (parts per million) and was 380 ppm in 2005. What is the percentage increase in CO₂ over this forty-six-year interval.

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