What process adds carbon to the atmosphere?

Carbon dioxide is a by-product of respiration] and combustion combustion: Combustion is the process of burning by fire.. Green plants remove carbon dioxide from the atmosphere by photosynthesis. Living organisms - including all plants and animals - release energy from their food using respiration. read more

The process of respiration adds carbon to the atmosphere. Respiration occurs in living organisms around the world, including plants and animals. It encompasses the process of breaking down organic molecules with carbon into smaller components, including carbon dioxide, which in turn releases into the atmosphere and surrounding environments. read more