The Green Revolution, while dramatically increasing food grain production, often relied heavily on chemical fertilizers and intensive irrigation, which could lead to soil degradation and water depletion. The Blue Revolution relates to the increase in fish production through aquaculture. The Yellow Revolution is associated with the increase in edible oil production. The Evergreen Revolution is a term coined by M.S. Swaminathan to describe the pathway to increasing productivity in perpetuity without ecological harm. It emphasizes sustainability, ecological principles, integrated pest management, soil health management, water harvesting and judicious use, and biodiversity conservation. Promoting soil health and rainwater harvesting are integral components of this approach.