Open AccessThe current state and the impact of the use of unconventional energies in the international energy context
Author(s) -
Cristian Niţă
Publication year - 2018
Publication title -
scientific bulletin
Language(s) - English
Resource type - Journals
eISSN - 2392-8956
pISSN - 1454-864X
DOI - 10.21279/1454-864x-18-i2-004
Subject(s) - context (archaeology) , commodity , business , natural resource economics , state (computer science) , environmental economics , international shipping , propulsion , international trade , commerce , economy , environmental science , engineering , economics , finance , geography , computer science , archaeology , algorithm , aerospace engineering
Approximately 90% of world commodity trade is made by shipping by shipping companies and, as such, shipping plays an important role in the modern world economy. Although there is not too much shipping capacity in relation to the size of shipping routes, ships are, owing to their high installed power, responsible for releasing impressive amounts of harmful gases and carbon dioxide emissions into the atmosphere, worldwide there is a continuing concern of specialists to find the appropriate ways to improve propulsion of ships, with the stated aim of making them as environmentally friendly, efficient and economical as possible.