With time comes growth. Apply that growth to just about anything if you want, but I will just apply it to economy. I shouldn't have to get into any details since that should speak for itself, but if it doesn't, ..well who cares if soemone doesn't feel like searching it up.
Global warming..nothing has been mentioned aye? Even though this is an issue we talk about everyday, and have debates about for candidates running for president.
I wonder if you have been living in a hole, because you would probably realize that some of the motivation behind things such as energy efficient hybrid cars, is global warming. Funny stuff.
Anywho, these examples can relate to generations of the future easily. We can see the fluxuation in ecnomy just by checking the average income of a family of the past century. We are dealing with situations that can wipe us off the face of the earth and are trying to delay or remove the possibility all together. If there is a new generation every 10 years, most likely what happens in one generation will effect the next one and the last.
So what..a generation. There are quite a few and will be quite a few more during my lifetime, so why does one really make that much of a difference? We will all effect each other anyways.