Climate change has become the main focus of social and scientific attention. It is one of the most critical threats facing the world today, with predicted increases in global mean temperature, length and severity of drought events, and atmospheric CO2 concentration due to human activities (IPCC, 2014a). Rising atmospheric carbon dioxide (CO2) concentrations along with increased ambient temperature are going to impact severely the food production systems including animal origin. Greenhouse gases are the primary cause of rising temperatures in the atmosphere. The CO2 level has risen at a pace of 1.9 ppm per year over the last twelve years and is expected to exceed 570 ppm by the middle of this century (IPCC, 2014b). As a result, the global surface temperature is expected to rise by 3-4.5˚C (IPCC, 2014). Such increases in CO2 concentration are expected to have cascading effects on numerous aspects of plant biochemistry, since plant productivity is strongly tied to atmospheric CO2 through photosynthesis (Dietterich et al., 2015).