https://www.bruegel.org/sites/default/files/2024-02/PB%2002%202024_3.pdf
https://chemsec.org/echas-5-year-review-paints-dark-picture-but-there-is-hope/
https://www.ussif.org/files/GSIR_Review2018F.pdf
https://www.bruegel.org/analysis/struggle-cut-emissions-international-aviation-and-shipping