Large canopy trees are a vital part of our townscapes, bringing massive environmental benefits as well as making our urban areas nicer places in which to live and work and helping to boost our wellbeing. But they face many threats, some natural, some man-made - everything from climate change, pests and diseases and poor maintenance to a weak planning system and over-zealous development. Here, we have gathered together a compendium of JPA articles that explain the main threats, offer some solutions and pay tribute to our precious urban trees.

geograph 3756127 by Derek Harper

Existing pests and diseases, and those to come

How our tree planting needs to respond to climate change

The threats from development (and how to get it right)

The planning system is failing urban trees

For the love of city trees