FAQ & Support
Frequently Asked Questions
OpenPlanet is a climate risk intelligence platform that provides high-resolution heat projections for any city on Earth. It estimates heat-related mortality, economic losses, and heatwave exposure using peer-reviewed epidemiological models, then lets you model the impact of interventions like urban tree cover and cool roofs.
The engine uses ERA5 reanalysis data via the Open-Meteo API for historical baselines (1991–2020), and a 3-model CMIP6 ensemble (MRI-AGCM3-2-S, NICAM16-8S, MPI-ESM1-2-XR) for projections up to 2050. For 2075 and 2100, IPCC AR6 WG1 published regional warming deltas are applied. Population data comes from GeoNames, GDP and mortality rates from the World Bank API.
No. They are research-grade estimates based on statistical models under specific emissions scenarios (SSP2-4.5 and SSP5-8.5). Mortality estimates carry a ±15% confidence interval and economic estimates carry ±8%. They are directional indicators for planning and analysis — not deterministic forecasts and not investment advice.
OpenPlanet is built for anyone who makes decisions about places — city planners assessing heatwave risk, climate researchers who need auditable projections, investors and risk teams quantifying GDP-at-risk, and curious individuals who want to understand what climate change means for a specific city.
The mortality model follows Gasparrini et al. (2017) published in Lancet Planetary Health (β = 0.0801). The economic model follows Burke et al. (2018) in Nature combined with ILO (2019) labor productivity data. Wet-bulb temperature uses the Stull (2011) empirical formula capped at 35°C per Sherwood & Huber (2010). All constants are documented and traceable. Post-2050 projections use IPCC AR6 regional deltas, not direct CMIP6 output — this is disclosed throughout.
Yes. Every city analysis includes a full Excel export — a 4-sheet audit model with a plain-language README, an editable Control Panel where you can change any input and watch outputs recalculate instantly, a Core Engine sheet with the complete peer-reviewed mathematics, and a Constants & Provenance sheet with full citations. The file is compatible with both Microsoft Excel and Google Sheets.
If you have feedback, found a bug, or want to suggest a new feature, we'd love to hear from you. Just drop us a message using the contact form on this page.