How could global famine and lack of life saving resources be improved?

If you look at the earth and it's ability to harbor life, you will see that humans crossed that threshold a long time ago. The truth is, the earth does not have the ability to provide for 7 billion people. If you look at the effect humans have had on the parts of earth that is human, you will see that it is not just humans that are dieing daily, there are millions of species who's population's are dropping at ridiculously fast rates. In my opinion, the earth is going through a mass extinction like it did in the day of the dinosaurs. I do not think that all humans will die, but I think most of them will. The only survivors will be the ones with enough money to keep them and their families alive. The best hope we have for the future is to learn from our mistakes. We need to understand as a species with 7 billion people, we need to be very careful about the decisions that we make and the effect that they have on our planet and on ourselves.