The daily light show at St. Gabriel's in Toronto is not just aesthetically moving, writes Dean Dettloff. It is part of a church design that reminds us of human dependence on the earth.

In a wide-ranging interview, Pope Francis warned of “sovereignism” as a force that leads to isolation and even war, and he discussed the ecological imperatives of the Synod on the Amazon.

In May, Ireland became only the second country in the world to declare a “climate and biodiversity emergency.” But was it only a “greenwashing” move to distract climate activists from more oil and gas drilling?

Catholic Energies offers no-cost counseling to parishes, schools, hospitals and other Catholic organizations. “[We] demonstrate to them how they can save money and reduce their carbon emissions through smart solar energy projects."

What Catholics (still) don’t understand about communism.

Young people's intensified demand for climate action is a sign of hope during the planet's ecological crisis, said Cardinal Peter Turkson, head of the Dicastery for Promoting Integral Human Development.

After all previously stocked items are gone, no more single-use plastic will be sold.

For more than three decades, Juscelina Silva Batista's life has followed the rise and fall of the Amazon River.

We know of at least 4,000 planets outside our solar system, writes the astronomer Samantha Lawler, but we will not be visiting any of them soon—nor do we know if any are inhabitable. Exploring space teaches us the fragility of Earth.

The show raises questions about the trust we put in the institutions that claim to protect us. I could not watch this series without thinking of the world’s denial and inadequate response regarding climate change.