In order to know this, we need to measure the growth of trees year after year. 10% of all trees in the forest are manually measured, one by one, once a year. Gathering data on diameter and height, we can learn how much trees have been growing year over year.
Trees absorb CO2 from the atmosphere through photosynthesis. Oxygen (O2) is returned to the air we breathe, and carbon (C) becomes a part of the tree’s trunk and branches.
By measuring a tree’s growth rate, we are also measuring its CO2 absorption rate. One hectare of virgin forest can capture between 0.5 and 4 tonnes of CO2 every year. One hectare of managed forest, on the other hand, can capture up to 18 tonnes of CO2 annually.
This is extrapolated to the thousands of hectares that are a part of this project.