In June 2015, Pope Francis spoke out about the environment. He released a 184-page encyclical, a type of Papal message, warning of the dangers of climate change. In this letter, entitled "Laudato Si," Pope Francis wrote: “If present trends continue, this century may well witness extraordinary climate change and an unprecedented destruction of ecosystems, with serious consequences for all of us."
Pope Francis chided world leaders for failing to "reach truly meaningful and effective global agreements on the environment." He also called for "highly polluting fossil fuels" to be "progressively replaced without delay." And while improving and protecting the environment will be difficult, the situation is not hopeless, according to Pope Francis. "Human beings, while capable of the worst, are also capable of rising above themselves, choosing again what is good, and making a new start." The encyclical was considered significant by environmentalists and church observers alike because it was not directed exclusively to Catholics, but to everyone in the world.