Carbon sequestration in soil plays an important role in limiting global warming to 1.5°C. IPCC models integrate carbon storage and greenhouse gas (GHG) emissions to assess changes in land use or practices. However, these effects, called biogeochemical, are not the only ones that affect the climate balance. The albedo of the earth, i.e. its ability to reflect or absorb solar radiation, determines the temperature of the earth's surface. The higher this albedo, the more the surface reflects solar radiation received into space and can be considered a "cooling" effect. Its value is between 0 and 1. The albedo of snow is therefore closer to 1 if it is very white. In short, the more reflective the surface, the higher its albedo. Applied to agriculture, this phenomenon represents a minus for mitigating climate change. In order to try to explore its potential, the Institute of Livestock took up the subject a few years ago. Objective: to invest in a previously under-documented area of analysis by assessing the impact of albedo on climate change mitigation in addition to carbon storage in meadows and reducing greenhouse gas emissions from livestock farms. To this end, seven measuring stations have been set up since 2020 in very different climatic conditions, from Finistère to Ardèche via Haute-Vienne. Last June, a project restitution seminar proposed promising paths relating to our green meadows. seven measuring stations have been set up in very different climatic conditions, from Finistère to Ardèche via Haute-Vienne. Last June, a project restitution seminar proposed promising paths relating to our green meadows. seven measuring stations have been set up in very different climatic conditions, from Finistère to Ardèche via Haute-Vienne. Last June, a project restitution seminar proposed promising paths relating to our green meadows. (Sophie Chatenet)