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Heat waves remain expected to become more often and last longer in several locations as worldwide temperatures increase. Those transitory temperature spikes beyond typical average levels will have a significant influence on plant photosynthetic as well as stomatal physiology. Abundant of the Mediterranean had a significant heat wave in the summer of 2021. Researchers provide photosynthetic leaf gas conversationalso chlorophyll fluorescence data of olive cultivated in Central Punjab, Pakistan, during a heat wave with noon temperatures above 40 degrees Celsius. Heat stress lowered the olives' metabolic ability, which was associated with lower ribulose-1,5-bisphosphate oxygenase efficiency. Photosystem II damage was more visible in plants that were deprived of water. In contrast to earlier research, greater temperatures reduced stomatal conductivity. Heat stress reduced the carbon efficiency of olive. As global temperatures rise, the selection of olive types having higher resistance to heat stress or techniques to minimize effect of rising temperatures is becoming progressively crucial in promoting sustainable agriculture in the Mediterranean.