# The canopy

> A million and a bit trees, coloured by whether they will cope with 2090.

- Category: Environment
- Cadence: annual
- Status: Published on a annual cadence.
- Dataset key: `tree-points`
- Source: [London Datastore](https://data.london.gov.uk/dataset/local-authority-maintained-trees/)
- Licence: Open Government Licence v3.0 — [terms](https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/)
- Canonical page: [https://londongraph.com/g/the-canopy](https://londongraph.com/g/the-canopy)
- Machine-readable record: [https://londongraph.com/data/the-canopy](https://londongraph.com/data/the-canopy)

## Methodology

London's public realm trees — 1.14 million of them, collated by GiGL from all 33 local authorities, TfL, the Royal Parks and others. Colour is the composite climate suitability score from the Future Climate Suitability of London's Public Realm Trees report, which rates each common species against the conditions expected in 2090. This is not London's whole urban forest: the i-Tree survey puts that above eight million, and gardens and woodland are absent. The map is a one-in-eight sample of a 209 MB file; the counts beside it use every row.

## Visualisations

- [Sampled tree map](https://londongraph.com/g/the-canopy): Explore the committed sample of public-realm tree records by climate-suitability band.
- [Record hotspots](https://londongraph.com/g/the-canopy?view=hotspots): Aggregate sampled records into relative record concentration, not canopy density. Caveat: This is register-record density; incomplete inventories and the one-in-eight map sample remain visible limitations.
- [Borough climate profile](https://londongraph.com/g/the-canopy?view=borough-climate): Compare the four 2090 suitability bands across borough records with at least 100 assessed trees.
- [Mapped breakdown](https://londongraph.com/g/the-canopy?view=breakdown): Summarise the climate-suitability categories represented by the sampled map without reloading every coordinate. Caveat: The summary describes the one-in-eight map sample; full-register borough and species totals remain on their dedicated pages.

## Citation guidance

Attribute the original publisher named above and identify LondonGraph as the visualisation and methodology layer. Do not describe live values as a historical census, and do not present placeholder values as observations.