Japan's trade minister said Tuesday it would be difficult for the Group of Seven nations to ban Russian liquefied natural gas imports unless alternative suppliers can be found.The G-7 nations including Japan have decided to ban or phase out coal and oil imports from Russia as part of sanctions imposed in response to its invasion of Ukraine. Speculation is now swirling that LNG will be the next energy source added to the list.Japan's Economy, Trade and Industry Minister Koichi Hagiuda mentioned the difficulties in finding the alternative supply at a press conference and said, "If all parties…READ FULL ARTICLE