Climate change has an impact on plant health. Alterations in weather conditions may lead to biological changes in pests and diseases, and also impact plant physiology and structure, which may increase vulnerability of plants towards pests and diseases. On the other hand, pests and diseases can contribute to climate change by causing tree mortality, which may consequently reduce net carbon sinks. This factsheet explores how climate change is putting plant health at risk, and what the International Plant Protection Convention (IPPC) is doing to mitigate the impact of climate change on plant health.