Methodology hub
How PaperStraw estimates emissions
Each module has its own data sources, inclusion rules, uncertainty and limitations. Choose a methodology to inspect the assumptions behind the public numbers.
Private Jets
How PaperStraw estimates private jet CO2 from imported flight records, aircraft-type filters, rollups, and equivalents.
Open methodologyCruises
How PaperStraw uses AIS observations, a curated cruise registry, MMSI review, and verified-public eligibility for cruise estimates.
Open methodology