The holidays just aren’t complete without a little drama for dessert. And what’s more dramatic than a planet in crisis?

It’s his form of environmental justice.

Pope Francis is not your average pope. He’s weighed in on prison reform and women’s rights, and he wrote a whole encyclical on climate change in 2015. On Friday, at the 20th World Congress of the International Association of Penal Law, Francis waded into the climate change debate again with an unusual idea: perhaps environmental destruction should be classified as an official sin.

Simply look at the reaction environmental activist Greta Thunberg received after speaking at the Climate Action Summit at the United Nations (or really, when she does anything) and you’ll see how heated things can get when people talk about climate change.

More than a decade ago, ABC News pulled off an amazing feat: a 2007 special edition of “20/20” that called attention to the rapid deterioration of the global environment. Reporters were stationed on all seven continents. The news unit even managed to have the lights turned off on the Empire State Building and Times Square to symbolize the dire threat posed by the decline of the earth’s natural support systems. Anchor Diane Sawyer had to use a flashlight – on camera – to maneuver around the set.

More than a decade ago, ABC News pulled off an amazing feat: a 2007 special edition of “20/20” that called attention to the rapid deterioration of the global environment.

Studying Christianity provides important insights into how to talk productively about climate change with a variety of audiences. I interviewed Christians from many different denominations and found that they don’t all think alike when it comes to the environment. Some reject environmentalism, some embrace it, and others modify it to fit their beliefs.

It’s still a common refrain on climate change: “I don’t believe it.”