Analyzing Keeling's Curve
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Objective
I can interpret Keeling's Curve to analyze trends in atmospheric carbon dioxide and discuss potential effects on Earth's climate.
Part 1 of 3
Key concepts
3 concepts
- 1
Keeling's Curve shows the ongoing change in the concentration of carbon dioxide in Earth's atmosphere since 1958.
- 2
The upward trend in Keeling's Curve is primarily due to the burning of fossil fuels, deforestation, and industrial processes.
- 3
Keeling's Curve shows a seasonal cycle where CO₂ levels dip during the Northern Hemisphere's summer and rise in the fall and winter.
Part 2 of 3
Practice
3 questions
What is the primary source of the increasing CO₂ levels depicted in Keeling's Curve?
Explain the seasonal cycle observed in Keeling's Curve. What causes the CO₂ levels to fluctuate throughout the year?
Part 3 of 3
Exit ticket
Quick comprehension check
“Describe the overall trend shown by Keeling's Curve and explain one reason for the seasonal fluctuations in the curve.”
Sample answer included in the free materials
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