The contributors to this volume offer an in-depth examination of Muslim and Christian theological treatments of environmental and ecological concerns. The volume brings together a collection of articles by Muslim and Christian voices from diverse denominations and schools of thought, reflecting on environmental issues in the context of the current climate emergency. It provides a unique intellectual space for international experts in the two theological worlds as well as specialists in science and architecture to discuss the most pressing matters of ecology and care for the earth. This model of interreligious and interdisciplinary collaboration is likely to help scholars network even more closely, both inside their home traditions and with their theological neighbours.