National Geographic : 1987 Sep
Ada 1986, that figure jumped to over five million barrels a day. By 1990, we will most likely rely on imports for nearly half our needs. Some say as much as 75%. Compare that to 35% in 1973. What happens when we become too depen ©1987 USCEA 0 i aPb t energy nt on AWARENESS 'l ~.~..