<p>In the “Sustainable Carbon Cycle” statement adopted by the EU in 2021 within the scope of the “Green Deal”, it was stated that it is critical to produce ecosystem-based solutions to offset carbon emissions and increase carbon sequestration, and it was recommended to promote “carbon agriculture” and related industrial solutions. In this context, trees and forests, in particular, are one of the most important strategic actions as their vital multifaceted services and contributions are becoming increasingly important (Gül et al., 2009).</p><p>Greenhouse gas emissions/sequestration caused by anthropogenic impacts can be calculated in units of CO2; therefore, the impact of these impacts on the environment is presented as a “carbon footprint” (Akten &amp; Akyol, 2018). In order to reduce the carbon footprint and/or maximize carbon sequestration, afforestation of private or public areas and the calculation of a certain carbon sequestration on a national basis and the establishment of a carbon standard have become a priority in order to achieve the global net zero emission target coming from the Paris Agreement. Project preparation, design, carbon calculation methods and estimation will play an important role in the carbon market for carbon sequestration and storage, ecosystem services production, carbon crediting and certification of voluntary carbon sequestration afforestation and reforestation projects. In this study, the importance and processes of voluntary carbon sequestration afforestation and reforestation projects, carbon calculation methods and estimation are discussed and discussed, and suggestions are made under the conditions of our country.</p>