The International Maritime Organization has approved amendments to its MARPOL Annex VI regulations, introducing an Energy Efficiency Design Index (EEDI) that is expected to come into force in 2023. S&P Global Platts container editor George Griffiths and tankers editor Charlotte Bucchioni look at what these new amendments entail, and how they might impact the world of shipping at a time when freight rates are already volatile and uncertainty has become the new normal.