New regulatory framework is limiting use of conventional fossil bunker fuels because of their air polluting impact in the defined ecologically sensitive areas. The new limits for all trading areas are coming and new restricted areas will be set. The book "Green Bunkering with LNG" is briefly describing practical bunkering alternatives and options to comply with the new regulations and is focusing on the natural gas as one of the most perspective bunkering options. LNG practical bunkering issues were discussed and technical and economic aspects of supply and consumption are analyzed. Based on the research results the optimal size of the challenging LNG bunkering vessel for Baltic area is considered. The book is an essential introduction in alternative bunkering world and on use of LNG as bunkering fuel. The book may serve as practical guide for ship owners and managers and superintendents to make right decisions regarding new building specifications and upgrading plans for their fleet as well it will be useful for bankers or ship financiers, brokers and maritime profile students and academic staff.