Global Warming Potential Lookups and CO2-Equivalent Conversion R package co2e version 0.1.0 Provides curated Global Warming Potential (GWP) values from IPCC Assessment Reports 4 through 6, gas name standardization across documented naming variants (IUPAC/common names, per-report naming changes, and EPA/data.gov naming), and CO2-equivalent conversion utilities. Values are drawn from official IPCC source tables, with corrections applied for two substances where the published table is known to contain errors; see the package vignette for details and source-by-source provenance notes. Software Depends: R (>= 4.1.0) Imports: dplyr, tibble, stringr Suggests: tidyr, readr, testthat (>= 3.0.0), knitr, rmarkdown, spelling Joe Corra <Joewcorra@gmail.com> Comprehensive R Archive Network (CRAN) Joe Corra [aut, cre, cph] MIT + file LICENSE (https://CRAN.R-project.org/package=co2e/LICENSE) 2026-09-10 application/tgz https://CRAN.R-project.org/package=co2e doi:10.32614/CRAN.package.co2e en-US