The Future of Earth

Let's face it, one day the human race is going to come to an end.  There are many theories as to how the end will come, but I think that human's life on Earth will come to an end due to Earth's inability to sustain the population.  Every year the population is becoming much greater, and the resources and space is being used up rapidly.  One day, I feel that the Earth will simply fail to foster humans' continuously expanding wants and needs.  

In order to extend the amount of time that will make Earth optimally habitable for humans, the global society needs to be as efficient as possible.  As the population is increasing, we need to work on finding new ways to satisfy desires, and treating natural resources as a scarcity, not something disposable.