Field observations and studies correlate rainy El Niño events with increased plant production. Small experiments demonstrate that herbivores preclude tree establishment even under simulated El Niño rainy conditions. Medium-sized experiments during natural El Niño events are needed to test underevaluate?/demonstrate? which environmental settings using herbivore control during rainy years result in produce significant tree/shrub recruitment. Creation of a network of field cases set up by local stakeholders. Policy making coordinate action between institutions to set up a management plan that encourages the use of herbivore control during rainy El Niño years for reforestation, (e.g. Comisión Nacional del Medio Ambiente (CONAMA), Ministry of Agriculture, Institute of Metereology, Corporación Nacional Forestal (CONAF), Non-governmental Organizations (NGOs), United Nations Convention to Combat Desertification (UNCCD) as national focal point).