Pope Francis continues his first-ever trip to the United States by heading to Capitol Hill today to become the first pope ever to address Congress. He spoke at the White House Wednesday about immigration, poverty and climate change.

Pope Francis: “It seems clear to me also that climate change is a problem which can no longer be left to a future generation. When it comes to the care of our 'common home,' we are living at a critical moment of history.”

On Wednesday, Pope Francis also canonized the 18th-century Spanish missionary Junípero Serra. The move has drawn strong protest from many indigenous groups. Serra founded nine of the 21 missions in California. Hundreds of thousands of people died after the missionaries arrived.