Carbon offsetting is the process of ensuring that whatever carbon dioxide you produce is absorbed. This is to promote the reduction of global carbon emissions. The easiest way to promote carbon offsetting is to plant trees and have a small garden. Theoretically whatever action you perform, such as taking a flight between two states, contributes to carbon dioxide emissions. Using a carbon calculator one can calculate the carbon footprint they have on the environment. In order to counter this they can take steps to replace the carbon dioxide with fresh oxygen by planting more plants or taking other such measures.