Watch Live: April the Giraffe Showing ‘Continued Increase in Belly Movement’

Wham Cam: Carbon Dioxide

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Every time we breathe, we put something in the atmosphere that may be linked to global warming.

The respiration process is one of the sources of atmospheric carbon dioxide, but how much of the earth's atmosphere is really CO2?

Joe Snedeker headed to Muncy to see if people know the answer.

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