Canopy Deficit Explorer

Buildings analysed

45,308

Below threshold

93.9%

Mean canopy nearby

12.0%

Temperature gap

6.3°C

Canopy threshold 30%

Research shows 30-40% canopy within 60m is needed for effective cooling

Lyon, France — tree canopy ≥3m within 60m of each building. Sources: Meta/WRI canopy (2020), IGN BD TOPO (2024), Landsat 9 LST (7 Aug 2022). Unpublished analysis by Dr Thami Croeser, June 2026.