Some of that happened in my current game. Two major land masses, 3 civs on mine, 5 civs on the other. I control most of my continent due to a very early war with Egypt. There are like 2 iron, 1 saltpeter, 1 oil but no rubber and when I discovered steam power, no coal, but it later appeared.
The strategy for me, is to try and work with the major powers overseas for as long as possible, I just discovered Refining, and hope to win a peaceful space ship victory. To trade for Rubber cost me about 400 gold and my World Map.
The big thing is to try to keep trading resources, tech and keep everyone happy. I am also avoiding any Mutual Protection Pacts, so I don't get dragged into a World War that might develop on the other contintents. I don't think the Greeks will attack me, I'd wipe them out.