Before the Industrial Revolution, the flux of carbon from the terrestrial to the atmospheric pools the flux in the opposite direction. Today, the flux of carbon from the terrestrial to atmospheric pools the flux in the opposite direction.

was about equal to , exceeds

Explanation:

At the beginning of the industrial revolution, the carbon content was around 280 ppm and was stable for some time, and later on as of today it has exceeds the 400 ppm atmospheric pool of gases. Due to the increase in the amount of the greenhouse gas concentration and the burning of the fossil fuels and along the increase of the urbanization processes accelerated the speed of the carbon dioxide in the air.