Climate change is a significant global concern with widespread consequences for ecosystems, agriculture, and water resources in various regions. This chapter focuses on the relationship between climate patterns and water supply and demand in Libya over 60 years, from 1961 to 2020. The research reveals a significant warming trend, particularly between July and October, with notable temperature increases in several locations. Precipitation in Libya is erratic, and evapotranspiration exhibits regional variations. Water availability is a critical concern due to its arid climate and limited freshwater resources, and agriculture is the main consumer of water. Sustainable land management practices are crucial in addressing climate change, with deforestation and urbanization contributing to around 23% of global greenhouse gas emissions. This chapter also provides valuable insights into climate change trends in Libya and emphasizes the importance of understanding these trends for informed decision-making and strategies to mitigate the environmental and socio-economic impacts of climate change.