In a world where we utilize increasing amounts of pesticides and develop new ones to deal with pests that have grown resistant to pesticides in circulation, studies such as this one need to be conducted to increase our knowledge about how pesticides interact with other risk factors such as global warming. This study investigated the relationship between the butenolide pesticide Flupyradifurone and different temperatures that are predicted to become norm in northern Europe and their effect on bumblebees (Bombus terrestris). There was a significant increase in consumption of sugar solution when bumblebees were fed Flupyradifurone at higher temperatures, whereas control bees had higher consumption at low temperatures. The increase in consumption could indicate that the higher temperatures in the experiment resulted in an increase in toxicity thus resulting in an increase in energy spent due to detoxification. Bumblebees exposed to Flupyradifurone had aberrations in their behaviour such as increased aggressiveness and responsiveness to stimuli, as well as a decrease in movement speed. As a study investigating the synergistic effects of Flupyradifurone and increasing temperatures have not previously been conducted, the findings in this study are new and further testing might be necessary to cement the results.