Currently, we are facing a lot of problems in the world, as the Earth is becoming more and more populated and polluted. A few examples of the problems that I think are important are global warming and the energy problem. Because of this, some people are beginning to think that we should start researching the possibilities of living on another planet within our solar system, such as Mars. Even though I agree that we should start doing this researches, I think we should instead spend more money to solve our problems here on Earth. Researching possibilities to live on other planets could take decades before bringing anything to fruition, even if it is within the solar system. While I think problems on Earth, requires our immediate attention whether we like it or not since we have been ignoring it for far too long.