https://fullfact.org/europe/uk-law-what-proportion-influenced-eu/
https://publications.parliament.uk/pa/ld5901/ldselect/ldfsrc/133/133.pdf
http://www.aviationlaw.eu/wp/wp-content/uploads/2013/09/Freedoms-of-the-Air-Explained.pdf
https://www.openglobalrights.org/thinking-strategically-about-climate-litigation/