Climate change refers to long term fluctuations of temperature, precipitation, wind and other elements of Earth’s climate system. It is a change of climate which is attributed directly or indirectly to human activity that alters the composition of the global and/or regional atmosphere. Natural climate variability observed over comparable time periods in the types of changes of temperature and rainfall. It occurs because of internal variability within the climate system and external factors. The external causes may be natural or human induced activity. Human activities cause climate change mainly due to fossil fuel burning and removal of forests. Agriculture is one of the sectors most vulnerable to climate change impact. It is widely recognized that climate change and frequent droughts resulting from El Nino phenomenon are among the major risk factors affecting agricultural production,animal production that might contribute to hunger and food insecurity in Ethiopia.the objective is to review the impact of climate change on household food security of Ethiopia.Food security is a dynamic concept, which has continuously integrate new dimensions and levels of analysis over the years; Ethiopia is characterized by a complex livelihoods system due to its diverse topography, seasonality, and multi ethnicity.There are considerable evidences that climate is changing in the country. Climate change affects directly and indirectly in many aspects of food security, under climate change, the frequency and intensity of some disaster such as droughts and floods could increase, with an adverse impact on livelihoods and food security. Rainfall variability and associated droughts have been major causes of food shortages and famine in Ethiopia, therefore this paper reviewes the impact of climate change on household food security in Ethiopia.
