The Importance of Ice Core Data in Understanding Atmospheric CO2 Concentrations
What do ice core data reveal about atmospheric CO2 concentrations over the last 400,000 years?
a. The concentration has never exceeded 370 ppm
b. The concentration has never exceeded 300 ppm
c. The concentration has always been stable at 370 ppm
d. The concentration has drastically increased to 500 ppm
Answer:
The correct answer is: b. The concentration has never exceeded 300 ppm
Ice core data from the last 400,000 years reveals important information about atmospheric CO2 concentrations. The data indicates that the concentration of CO2 in the atmosphere has never exceeded 300 ppm during this entire period.
Analysis of ice core samples provides scientists with a historical perspective on CO2 levels, showing that the current measurement of 370 ppm is significantly higher than the maximum levels observed in the past.
This data highlights the impact of human activities on increasing CO2 levels in the atmosphere and underscores the importance of understanding historical trends to address current environmental challenges.