High Wire Networks Inc (HWNI)

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Plant and animal respiration

An important natural source of carbon dioxide is plant and animal respiration, which accounts for 28.56% of natural emissions (not man caused). Carbon dioxide is a byproduct of the chemical reaction that plants and animals use to produce the energy they need.

http://whatsyourimpact.org/greenhouse-gases/carbon-dioxide-emissions

The larger picture discusses the +/- exchange of CO2 which natural elements seem to balance. It appears the man caused portion is upsetting the balance. Nice read above.