This document discusses the effects of climate change on agriculture in semi-arid tropical regions, using examples from Ethiopia. It introduces climate and climate change concepts, and notes that rainfall variability is a major problem for Ethiopian farmers. The document then provides 5 examples of how climate change is negatively impacting agriculture in different areas of Ethiopia. It concludes by outlining possible adaptation measures, including changes to cultural practices, irrigation, and switching to more drought-tolerant crops. Appropriate scientific assessment and research are needed to design effective adaptation strategies.