Overview of global research in windbreak and shelterbelt technology, leading to the Optimal Shelterbelt (OSB). Discussing regulations and current ELM opportunities. Overview of importance of microclimate, soil humidity and temperature on Crop Degree Days (GDD), and potential to reduce impact of wind and low temperatures on grassland recovery. Benefits of shelterbelts for livestock, including reducing feed needs by moderating body temperatures. Observations on behaviour change between thermal comfort zones. Tree species selection in the context of farm and climate. Integrating trees into agroforestry for farm productivity and resilience.