Ahead of London International Shipping Week 2021, a six-part S&P Global Platts podcast miniseries looks into the pricing of alternative marine fuels for the global shipping industry. In each episode of Marine Fuels of the Future, Platts editors investigate the current state of the major fuel alternatives, as the shipping sector seeks to reduce its greenhouse gas emissions ahead of stringent caps in 2030 and 2050. In episode four, we look at whether those caps can be met with existing fuels or with innovative vessel optimization technologies.