While I believe in the social change theory of inevitable progress, and that human society is constantly improving, two emerging issues in society today are going to be signifigant challenges. The first is Globalization of different cultures, and the other will be Resources, though both may go hand in hand. With the advent of air travel and the internet, closed cultures will soon be near impossible to maintain. The problem that faces us is dealing with all these cultures. Will one culture become dominant and all others will follow, or will we respect individual cultures and adapt our own to accomodate?
With Globalization (and population increases) our resources may become more limited. I still believe that society will find a way. We may have to go to other planets, find new ways to use existing resources more efficiently, or even discover new resources. Needless to say, our greatest resource is our own ingenuity. Progress is inevitable.