In his groundbreaking 184-page encyclical letter, "Laudato Si" (On Care For Our Common Home), Pope Francis insists that global warming is real and that an urgent "cultural revolution" is needed to protect the Earth from its devastating effects. Indicting big business, short-sighted politicians and climate skeptics alike; he states that "doomsday predictions... can no longer be met with irony or disdain."
There are both scientific and moral reasons for protecting God's creation, he says. Nature is a precious gift that should be cared for, not ravaged. The poor bear the brunt of air pollution, toxic dumping, rising sea levels and extreme weather conditions. And the poor shouldn't suffer because of the sins of the rich.
Lastly, Francis attributes the Earth's continual loss of biodiversity, the melting of Arctic glaciers, and the pollution of the world's water supply to a broad sweep of wasteful human activities, like the burning of fossil fuels... not population growth.