• Even lowly fungi leading a hidden life in tree roots are affected by pollution.
  • Looking at 40,000 roots, 13,000 soil samples from 137 forests in 20 European countries, a ten-year study has now shown that increased nitrogen and carbon in the air is causing stress to helpful fungi that live on the roots of many trees.
  • The team also found that as the fungi went sick the trees also looked malnourished indicating how the plant-fungal symbiotic relationship was important for the survival of the tree.