Perfect Future

In the year 2946 the condition of the earth has reached a disastrous almost uninhabitable state. All natural resources have been over used, the great seas of the world are completely dried up, the sky has turned red but even then they are covered by thick black clouds created throughout millennia's of pollution generated from huge corporate monopolies. The earth is on the brink of complete decay and the human race has been completely wiped out with the exception of one clan.
This clan have dedicated their lives and whatever time they have left on the earth, to master the arts of social sciences and human history. They have now reached a point in intelligence which allows them to identify critical moments, events in human history that, at the time may have seemed meaningless but ultimately swayed the course of the earth into a future of total destruction and barbarism. Through the use of God's rock, a newly discovered natural resource, this clan has developed a one way time machine that allows them to view and, if they choose to, infiltrate the flow of time, with the express purpose of altering major political events so that the earth can be guided towards the "Perfect Future"