Occurrence of bacterial pathogens such as Salmonella and Campylobacter will increase with rising temperatures . Foodborne pathogen risks will increase through multiple mechanisms, though in general the impacts of climate change on different pathogens are uncertain . Even species within a genus can be affected differently. For example, higher CO2 levels depress the growth rate of F. graminearum, an economically important pathogen on barley but have little effect on F. verticillioides, which is the most reported fungal species infecting maize.
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report