“The grave danger," Pope Francis writes, "is to disown our neighbors. When we do so, we deny their humanity and our own humanity...and we deny the most important Commandments of Jesus.”

Critics of a draft executive order say it could be devastating to L.G.B.T. people.

Canada's diverging efforts—moving environmentally unfriendly bitumen south while seeking to contain carbon use up north—highlight the nation’s conflicted approach to energy and ecology.

"For governments, this means recognizing that indigenous communities are a part of the population to be appreciated and consulted, and whose full participation should be promoted at the local and national level."

An appearance at the Vatican is often used by supporters to signal papal support for an individual or a cause, but the reality is far more complex.

“It was remarkable to see a mayor of one of the largest and most diverse and vibrant immigrant communities in the nation be the first to capitulate” to Mr. Trump’s threat.