Food losses refer to edible food mass decrease throughout the human food chain. Food losses occurring at consumption stage are called food waste. Food Losses and Waste (FLW) represent one of the most critical social, economic and ecological challenges facing humanity, besides being also an ethical issue. FAO data show that roughly one-third of food produced for human consumption is lost or wasted. There are no precise and accurate data regarding food waste in Near East and North Africa (NENA) region. The review paper aims at providing insights about the extent of FLW in NENA region with a special focus on Arab countries and Iran. The paper explores linkages between food waste and food security. Moreover, it analyses the economic and environmental implications of FLW. FLW vary depending on food type, country and season. Generally speaking, postharvest losses are significant in this region for most of commodity groups. It is estimated that FLW amount to 34% of food supply in NENA region. FLW undermine the very foundations of food security and amount to major depletion of resources (e.g. water, land, energy) and produce needlessly greenhouse gases. They also represent a wasted investment that reduces farmers’ incomes and increase consumers’ expenses. Therefore, food waste reduction is crucial for improving the sustainability of the food supply chain and achieving food and nutrition security in the region. Manuscript profile

Innovation is a complex phenomenon and process involving translation of knowledge into new techniques, products, services. It is considered crucial for sustainable agriculture development and achievement of long-term food security. The review describes the diversity of innovation and relates it to agro-food sector. It also sheds light on different innovation models and explores their contribution to framing agro-food sustainability transitions. There are many variations in the use of the term ‘innovation’. Typical distinctions encountered in the literature are incremental vs. radical innovation and product vs. process vs. organizational innovation. A significant feature of the development of modern innovation thinking has been a gradual broadening of innovation scope as well as more attention to sustainability. The scope of innovation was broadened to include soft (social/organisation) innovations besides hard/technical ones. In fact, the interest has shifted from technological innovation to disruptive niche innovations fundamental for socio-technical transitions. Moreover, as a recognition of system complexity, frameworks such as the Innovation systems and the Multi-Level Perspective (MLP) were developed and promoted. However, despite positive innovation benefits, relationship between innovation and sustainability in the agro-food arena is far from straightforward. Therefore, focus is gradually moving from innovation process to its impacts in terms of sustainability and its contribution to sustainability transitions in agriculture and food systems. Manuscript profile