Climate change observed as a result of global warming changes the phenology of many living species. The sustainability of the reactions of organisms interacting with each other is impaired due to the inability to maintain synchronization between them. The quantity, diversity and functionality of bees, which have a very important place especially in terms of pollination of wild plants and agricultural products, are negatively affected. Higher temperatures, changing rainfall patterns, increased weather extremes and range shifts undermine bee health through mechanisms such as altered phenology, reduced foraging, worsening disease effects and exposure to pesticides. Our study provides a general evaluation of how climate change can affect the phenology of both plants and bees, and what can be taken into consideration to overcome the problems experienced.