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The limited resilience of agricultural and food systems has become an agenda in the time of more extreme natural hazards. The impact of such events is extensive, and the level of damage and recovery strongly depends on ecosystem services, including their own resilience capacity. Most of the time, ecosystems themselves can offer mitigation measures based on the benefits people get from nature, including cultivated and wild biomass for nutrition, materials, or energy; pest and disease control; and regulation of baseline flows, among others. The 27th Conference of the Parties to the United Nations Framework Convention on Climate Change, held in Sharm el-Sheikh, Egypt, addressed issues related to crop production, food security, and nutrition. The information garnered from this conference provided impetus for actions that we believe can ensure a future with the resources needed for sustainable development and that support the health and nutrition for all the inhabitants on Earth.

Studies have both supported and contested the proposition that lowering plasma cholesterol by diet and medications contributes to depression. Evidence suggests that an imbalance in the ratio of the essential fatty acids (EFAs), namely the n-6 and n-3 fatty acids, and/or a deficiency in n-3 fatty acids, may be responsible for the heightened depressive symptoms associated with low plasma cholesterol. These relationships may explain the inconsistent findings in trials of cholesterol-lowering interventions and depression. Dieting behaviors have similarly been associated with alterations in mood state. This review discusses studies of EFAs and depression and explores the involvement of dieting-related psychological factors as potential confounders.