Afforestation, tree planting and the restoration of forests can protect biodiversity and help fight global climate change by removing large amounts of carbon dioxide from the atmosphere, if done well. It is already practised at scale, but limited by available land, and prone to reversal from disturbances and from climate change itself.
However, while carbon is removed and stored in the trunk, the branches and the roots of the trees, it may not stay there for a long time. Trees and forests can burn or be harvested, which can re-release some or all carbon removed. Also when the wrong trees are planted in the wrong place, they can cause more harm than good.
For creation of the carbon credit, the trees must be measured and confirmed.