Agriculture is Kenya's economic backbone, contributing over 25% to GDP. Around 1 million hectares are under irrigation with a goal to transform subsistence farming. The major agricultural subsectors are tea, coffee, sugarcane, and cotton. Hunger affects over 1 billion people worldwide, most pronounced in rural Africa and Asia in drought-prone areas. Food insecurity is caused by factors like poverty, insecure land tenure, climate change, and world food prices. Solutions include responsive food policy, farming incentives, education, and advocacy.