London is a forest, and this map explores its trees

TreeTalk finds rare arboreal treasures among London's common foliage.

Image: TreeTalk
  • The world's largest urban forest, London counts nearly as many trees as it does people.
  • TreeTalk identifies about 700,000 of them, both common species and rarities.
  • Explore them yourself, or have the algorithm pick out a route from a starting point of your choice.
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A map of London's most toxic breathing spots

Air pollution is up to five times over the EU limit in these Central London hotspots.

  • Dirty air is an invisible killer, but an effective one.
  • More than 9,000 people die prematurely in London each year due to air pollution, a recent study estimates.
  • This map visualizes the worst places to breathe in Central London.
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