as_co2e                 Convert a mass of greenhouse gas to
                        CO2-equivalent
gas_synonyms            Gas name synonyms
gases                   Gas identity reference table
gwp                     Look up a greenhouse gas's Global Warming
                        Potential
gwp_compare             Compare a gas's GWP across IPCC Assessment
                        Reports
gwp_values              Global Warming Potential values by gas,
                        assessment report, and horizon
standardize_gas         Standardize a gas name to its canonical
                        'gas_id'
