On Care for Our Common Home - In this encyclical Pope Francis begins by reviewing several aspects of the ecological crisis, with the aim of drawing on the results of the best scientific research available today, letting them touch us deeply and provide a concrete foundation for the ethical and spiritual itinerary that follows. He then attempts to get to the roots of the present situation, so as to consider not only its symptoms but also it's deepest causes. This will help to provide an approach to ecology which respects our unique place as human beings in this world and our relationship to our surroundings.  In the light of this reflection, broader proposals for dialogue and action are advanced, which would involve each of us as individuals, and also affect international policy.  Finally Pope Francis offers some inspired guidelines for human development to be found in the treasure of Christian spiritual experience.