https://www.esri.ie/system/files/publications/SUSTAT118.pdf
https://www.tandfonline.com/doi/epdf/10.1080/13501763.2023.2231029
https://carbonmajors.org/site//data/000/027/Carbon_Majors_Launch_Report.pdf
https://library.wmo.int/doc_num.php?explnum_id=10108