This edited book is a collection of essays presented at the 2nd annual Integrity of Creation Conference at Duquesne University, USA, and thus represents the 2nd Conference Proceedings of an annual endowed series. The title of this conference was "Protecting Our Common Home, " adopted in the title of this volume. The concept of Integral Ecology conveys the indispensable inter-relation of topics, expertise, and specialties in the quest to protect the planet whose environment may face catastrophic threat. A leitmotif throughout the book is the ecological encyclical of Pope Francis called Laudato Si’: On Care for our Common Home, published in 2015. Indeed, the title of the volume refers to the phrase "integral ecology" and the challenge to "protect our common home" in the encyclical.Although the inspiration for the title comes from a religious leader, the analysis engages both secular and religious perspectives on crucial issues that threaten the ecology of our planet. The sections of the book are divided into the context of the problem, environmental science, social science, religion and ethics, and advocacy.