So at the very least like the US they would not starve but would have a lower standard of living for a time. I could see this timeline adding a few more years onto the life of the Soviet Union . However I dont think it means they win the Cold War. Also I think we have to clarify what would winning the Cold War mean ? Holding onto the Eastern Bloc withought any breakaways that preceeded the collapse of the Soviet Union in OTL is one thing and perhaps something they did ITTL. But If we are talking any kind of incursion into West Berlin or Western Europe then there is no way the US would allow that. Perhaps the Soviets still invade Afghanistan and more involved in the Middle East,Africa and to the great annoyance of the US Central and South America. Perhaps they get away with more there but iif we are talking about installing pro-Soviet communist governments in all those places then still no. Sadly they might advance farther in space than the US for a time as well. The formation of the Great Nebraska Sea would injure the US for a time but it would not really completely cripple or destroy it....The Soviet Union was importing grain because they wanted to produce more beef, not because they were short on bread.