10 Apr the keeling curve
1)The oldest available data point from the Keeling curve was from 1958 and had a readout of 315.70 ppm. The most current available data point is from 2017 and had a readout of 407.46 ppm. Calculate the average rate of change (slope) between these two data points. Interpret your results. Please remember to include units.
2)Why do you think the “monthly mean” line shows a single rise and fall each year? Explain your answer.
3)Why do you think the “long-term trend” line is steadily increasing? Use the terms and concepts you learned about the carbon cycle in your response.. Why do you think the sharp drop in CO2
levels occurs between the months of May and September/October?
4)What role does the Earth’s vegetation play in shaping the annual CO2
cycle of levels shown in the Mauna Loa data?
5)The Mauna Loa Observatory is located in the Northern Hemisphere, while other CO2
observatories are located in the
Southern Hemisphere. How different do you think the Southern Hemisphere CO2
levels would be?
