More than 50 people gathered on May 4, 2012, at Dorothy Day Catholic Worker in Washington, D.C., to discuss climate change and the seven principles of Catholic Social Teaching. Sojourners’ Rose Marie Berger spoke to the group, which included 25 students from Bishop McNamara high school.

The students and others identified signs of climate change in D.C.: No snow this last winter, increased allergies, increased number of mosquitoes and other insects, more asthma, birds not migrating, and more severe thunderstorms and tornadoes. As part of 350.org’s global “Connect the Climate Dots” event on May 4-5, participants hold up “dots” for “no snow,” “drought,” and “severe weather.”

(Photos by Heidi Thompson and Alycia Ashburn)