 When Carolyn Mugar, from Boston, visited Armenia in 1992, the country had been impoverished by an energy embargo imposed during the Nagorno-Karabakh War.Armenians had previously depended upon natural gas for 90 percent of their energy needs, but their supply had been cut off by the embargo.Deforestation was particularly severe during the early 1990s, because many Armenians had only their trees as a fuel source during the winter.