A year in the making, Pope Francis released his much anticipated (and nearly 200-page) paper on climate change and the need for humans to get religion when it comes to science. And, as WaPo reports, “Pope Francis unmasks himself not only as a very green pontiff, but also as a total policy wonk.”

+ Here’s an excerpt from Pope Francis’s encyclical on the environment: “The Earth, our home, is beginning to look more and more like an immense pile of filth.” (It’s a pretty telling indicator that a pope makes headline news and creates a ton of controversy by publicly coming out in favor of the earth.)

+ Related Update: It’s hot.