When is respiration counted?

Answer 1

In greenhouse gas accounting for livestock, Robert Goodland and Jeff Anhang propose counting either carbon in respiration or foregone carbon absorption attributable to livestock. That's because reality no longer reflects the old model of the carbon cycle, which proposes that photosynthesis perfectly offsets respiration. That model assumed roughly constant levels of respiration and photosynthesis on Earth. But respiration has increased exponentially with livestock - while these animals have caused a dramatic decline in the Earth's photosynthetic capacity, along with large and accelerating increases in soil carbon volatilization. See their full argument at the web-site in the related link.

Answer 2

You count your respirations by watching the rise and fall of your chest for a minute. One rise and fall is considered one respiration.

Answer 3

Count how many breaths you or your subject takes, in one minute.