Climate change is a global threat. The increasing concentration of greenhouse gases mainly carbon dioxide, methane and nitrous oxide are considered as the prime reasons for global climate change. One source of the emission of these greenhouse gases is agriculture. Paddy fields have a major role in emitting methane into the atmosphere. The aim of the present study was to quantify the emission of carbon dioxide, methane, and nitrous oxide during crop growing season and fallow season from the paddy fields of Chathannoor Panchayat in Kollam district, Kerala, South India. Nine paddy fields were selected in Chathannoor panchayat for the estimation of carbon dioxide, methane, and nitrous oxide. The estimation of plant mediated transport of these gases were done along with the quantification of global warming potential of these gases in terms of carbon dioxide equivalent per hectare. Results showed that the emission of greenhouse gases is high during the crop growing season compared to that in the fallow season. The study reveals that carbon dioxide and methane were responsible for the higher global warming potential in the study area. The study recommends to reduce the methane emission by implementing integrated crop management techniques such as introduction of aerobic upland rice varieties and to decrease chemical fertilizer use.