How can we trace enhanced CO₂ atmospheric levels back to human activity?

Question

Quizplus · Accepted Answer

Carbon isotopes, particularly carbon-12 and carbon-13, are used to trace the sources of carbon dioxide in the atmosphere. Human activities, such as burning fossil fuels, release carbon dioxide that has a different isotopic signature than carbon dioxide from natural sources, allowing scientists to distinguish between anthropogenic and natural emissions.

How Can We Trace Enhanced CO2 Atmospheric Levels Back to Human

How Can We Trace Enhanced CO₂ Atmospheric Levels Back to Human