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The Question

(Submitted November 29, 1996)

Can gamma-rays react with CO2 in our atmosphere? If so how?

The Answer

Gamma-rays are usually absorbed in the upper atmosphere (most would not even reach the top of the Everest). Higher in the atmosphere, it can interact with CO2 molecules, but they do not react with CO2 more than with other kinds of molecules, if that was your question.

Koji Mukai
for Imagine the Universe!

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