International audienceNormandy is the world's leading producer of flax fiber (Linum usitatissimu L.) which is mainly exported to China. Flax is a spring cultivated plant which thrives in an oceanic climate, regularly watered and with limited thermal excesses. While the reduction in cycle length due to global warming would help counter the exposure to water scarcity in early summer, thermal conditions could be unfavourable to this crop production, particularly due to the greater occurrence of hot days.La Normandie est la première région au monde productrice de fibre de lin (Linum usitatissimu L.), majoritairement exportée à destination de la Chine. Le lin est une plante cultivée au printemps qui affectionne un climat océanique, régulièrement...