By the year 2050, agriculture will have to provide the food and
nutrition requirements of some 9 billion people. To maintain
that level of productivity indefinitely it must do so using
environmentally sustainable production systems. This task will be complicated by the effects of climate change. This article reviews
science-based evidence arguing that diversification with greater use of
highly valuable but presently under-valorised crops and species should
be an essential element of any model for sustainable smallholder
agriculture. It concludes that a
change in policy is needed to influence behaviours and practices but
also strong leadership able to
implement an action plan.
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