Carmelite Fr. Eduardo Agosta Scarel is an advocacy senior adviser on climate change mitigation with the Laudato Si' Movement. He holds a doctorate in atmospheric and oceanic sciences and is an expert in climate dynamics.

The Rev. Fletcher Harper is executive director of the international multifaith climate justice organization GreenFaith.

Allyson Winter-Polman lives in the Driftless Region of Iowa, where she manages a small Catholic Worker farm with her partner, toddler and soon-to-be second baby. She works daily to tend to and nurture the land, its creatures, her family and her own inner life.