ABSTRACT

The rising concentration of greenhouse gases has resulted in heating of the earth atmosphere. The agriculture sector has contribution towards emission of greenhouse gases and is also worstly affected from by consequences of global warming. The increasing concentration of carbon dioxide may have fertilization effect on C3 and C4 crops, but this effect has been projected to be negated by the simultaneous rise in temperature. Temperature also affect the yield of crops by its negative effect on the different growth stages and development of grains.Various options to adapt and mitigate the negative impacts of climatic change on crop production are the need of the hour. These strategies include various agronomic practices such as shifting sowing time, growing tolerant cultivars to heat and moisture stress, irrigation scheduling, crop diversification etc., harvesting rain water, micro-irrigation, protected cultivation etc. This chapter focuses on the contribution of agriculture towards changing climate, its effects on crop production and adaptation and mitigation strategies to overcome the negative effects of changing climate.