Hotel methodologies
Every hotel method gives a footprint per occupied room per night. They differ in how closely they match the hotel's location and class.
| Methodology | Best for | Data used | Location detail | Hotel class |
|---|---|---|---|---|
| DEFRAUK Government (DESNZ) | UK-based reporting of hotel stays | Country medians from the Cornell index | Country; London as a city | No |
| HCMI and CHSBCornell University and Greenview (CHSB index), using the HCMI method | Stays where the hotel's class or type is known | Cornell index benchmarks | Country, state, city | Stars or hotel type |
| GreenviewGreenview | Global hotel programmes | Greenview values from the Cornell index | City, then state, country, continent | Stars |
| Nos Gestes ClimatADEME (Nos Gestes Climat) | Quick estimates when only the number of nights is known | One fixed French average | None | No |