The goal of this research was to look into farmers' perceptions of climate change in agriculture. An ex post facto research design was used in the study. The research was carried out in wetland, dryland, and garden land farming systems in the Tamil Nadu districts of Madurai and Sivagangai. A total of 120 farmers representing three farming systems were chosen and surveyed for the study using a proportionate random sample procedure. Personal interviews with respondents were conducted using a well-structured and pre-tested interview schedule. Descriptive statistical tools were used to analyze the data. According to the findings, more than half of the respondents in the wetland (65.00%), dryland (50.00%), and garden land (55.00%) were perceived climate change in agriculture at a medium level. The majority of the garden land respondents (72.50%) had perceived the increased pest and disease incidence due to climate change than the respondents of wetland (52.50%) and drylands (30.00%). More than three-fifths of the respondents in the study area had perceived the income from agriculture was adversely affected (69.17%) due to climate change followed by the change in crop yield (64.17%) and cost of cultivation was increased (61.67%) due to the climate change. As a result, any intervention that supports the use of climate change adaptation measures may take into account location-specific factors that influence farmers' perceptions of climate change and adaptive responses to it.

Climate change is a global hazard to the world's food and nutritional security. As greenhouse-gas emissions in the atmosphere rise, so does the temperature due to the greenhouse effect. The average world temperature is steadily rising and is expected to climb by 2 degrees Celsius by 2100, resulting in significant global economic losses. Climate variability in the form of temperature and precipitation may impact on agricultural production and productivity. The study was conducted in the wetland, dryland, and garden land farming systems of the Tamil Nadu districts of Madurai and Sivagangai with a sample size of 120 farmers. Descriptive statistics were used in this study. For compare all three systems; a simple percentage analysis was performed. The majority of respondents in the wetland (65.00%), dryland (70.00%), and garden land (75.00%) farming reported a medium level of climate change adaptations. Cropping system diversification includes mixed cropping (65.00%), intercropping (36.66%), perennial and tree crop agriculture (30.00%), and fallow cropping (25.8%). Summer ploughing (36.67%) and micro-irrigation systems (34.17%) were among the water conservation strategies used by nearly one-third of those polled. The majority of respondents (85.00%) were rearing cattle   followed by working as a  r worker (off-farm activities) (56.67%) in the local industry is the second most common income diversification activity done by farmers.Government and agencies must play an important role in improving farmers' adaptive capacity by disseminating agrometeorological data and tools, conducting vulnerability assessments, and providing policy advice to strengthen institutional approaches to disaster risk reduction so that farmers can respond to the immediate risks of climate change and make the best use of climate variability.