Resilience is a common principal of permaculture, says Dave Boehnlein, co-author of the book Practical Permaculture.

In this Mother Earth News interview, Boehnlein stresses the importance of incorporating redundancy, such as with planning access to potable water. "If the water stops coming from a municipal system, then what’s your back-up plan? Six bottles in the basement? Great. When those run out, what’s your back-up plan?"

With weather patterns changing around the globe, Boehnlein’s focus has been on planting for the "climatic edges." Most species of trees and plants have specific climatic propagation requirements. Horticulture within a changing climate may well be an opportunity to expand those borders.