Proteins requirements in the diet is a challenge in feeding the global population. Protein rich crops such as legumes contribute to reduce environmental risk of agricultural production. Legumes are an important part of sustainable ecosystem services. Sustainable intensification of grain legumes optimizes food security on smallholder farms. Plant factors are affecting forage quality and grassland biodiversity. Climate change impact the adaptation and mitigation in agriculture and effect plants in complex multi-functioning landscapes. Resilient agriculture is targeting cultivation of food systems but also quality and utilization of agroecological resources for sustainable livestock farming. Improving the productivity of livestock with warm- season legumes will help to reduce climate change impact, adaptation, and mitigation in temperate grazing systems. As a result nutrition, feeding and management of beef cattle in intensive and extensive production systems get progress.