Temperature and its associated seasonal patterns are critical components of agricultural production systems. Rising temperatures associated with climate change will likely have a detrimental impact on crop production, livestock, fishery and allied sectors. It is predicted that for every 20 C (which has been predicted by 2030) rise in temperature, the GDP will reduce by 5 per cent. Accelerated warming has already been observed in the recent period 1971-2007, mainly due to intense warming in the recent decade 1998-2007. This warming is mainly contributed by the winter and post-monsoon seasons, which have increased by 0.80°C and 0.82°C in the last hundred years, respectively. The pre-monsoon and monsoon temperatures also indicate a warming trend. The main results of the study will be to point out on the one hand the high influence of climate change on food supply and welfare; on the other hand its important distributional consequences as the stronger negative effects are concentrated on dry regions. The simulation exercise is introduced by a survey of the relevant literature