Climate change observed as a result of global warming changesnthe phenology of many living species. Th e sustainability of thenreactions of organisms interacting with each other is impairedndue to the inability to maintain synchronization between them.nTh e quantity, diversity and functionality of bees, which have anvery important place especially in terms of pollination of wildnplants and agricultural products, are negatively aff ected. Highernntemperatures, changing rainfall patterns, increased weather ex-ntremes and range shift s undermine bee health through mecha-nnisms such as altered phenology, reduced foraging, worseningnndisease eff ects and exposure to pesticides. Our study provides a general evaluation of how climate change can affect the phenolo-ngy of both plants and bees, and what can be taken into consider-nation to overcome the problems experienced.