1. Modern Global Climate Change
2. EU climate action (accessed January 2019) https://ec.europa.eu/clima/citizens/eu_en
3. EMSA (accessed January 2019) http://emsa.europa.eu/main/airpollution/ greenhouse-gases.html
4. IMO, Third IMO. Greenhouse Gas Study, Executive Summary and Final Report, London, (2014) http://www.imo.org/en/OurWork/Environment/Pollu tionPrevention/AirPollution/Pages/Default.aspx
5. Black Sea Container Ports, Drewry Marit ime Advisors, The European Sea Ports Conference -ESPO (2013) https://www.espo.be/media/30052013-0830-vanaale.pdf (accessed January 2019)