Achieving carbon neutrality by 2050 implies achieving a balance between greenhouse gas emissions and absorptions on national territory. Indeed, by 2050, by mobilizing to the maximum the potential of each lever available to reduce greenhouse gas emissions, without however making technological bets, a certain level of emissions seems incompressible, in particular in non-energy sectors (particularly agriculture). To achieve carbon neutrality, these emissions must be offset by carbon sinks, such as: ecosystems managed by humans (forests, agricultural land, etc.), products and materials derived from the bioeconomy from plant materials (wood, straw, etc.), industrial processes (capture and storage or reuse of carbon - see appendix 5. CSUC).