According to a scientific study, the uptake of atmospheric carbon by plants - existing and newly planted - and subsequent storage in soils "may be an effective means to lower atmospheric carbon dioxide (CO2) concentrations and to help mitigate climate change":

​

https://advances.sciencemag.org/content/4/8/eaaq0932?intcmp=trendmd-adv&_ga=2.140046771.1275592025.1563696198-1810662226.1563696198

​

Another study has analysed the forest restoration potential across the globe: Outside of existing forests and agricultural and urban land, "ecosystems could support an additional 0.9 billion hectares of continuous forest. This would represent a greater than 25% increase in forested area, including more than 500 billion trees and more than 200 gigatonnes of additional carbon at maturity. Such a change has the potential to cut the atmospheric carbon pool by about 25%":

​

https://science.sciencemag.org/content/365/6448/76

​

Take a look at this short impressive video made by Crowther Lab, ETH Zurich:

​

https://www.eurekalert.org/multimedia/pub/204919.php

​

​