The Permaculture Earthworks Handbook: How to Design and Build Swales, Dams, Ponds, and Other Water Harvesting SystemsMaximize your water harvesting potential with efficient, cost effective earthworks In the face of drought and desertification, well designed, water harvesting earthworks such as swales, ponds, and dams are the most effective way to channel water into productive use. The result can be increased food production, higher groundwater levels, reduced irrigation needs, and enhanced ecosystem resilience. Yet, due to a lack of knowledge, designers, and