“To love the poor means to combat all forms of poverty, spiritual and material."

Pope Francis’ condemnation of deterrence is a strong challenge to nuclear strategies of the superpowers, including the United States.

"We know that it is the biggest support they can get, the involvement of the church and Pope Francis."

The comments came as U.S. lawmakers in Washington, D.C., have been debating how to overhaul the nation's health insurance laws.

“There is no obligation to have recourse in all circumstances to every possible remedy” to keep a person alive.

The pope said the Paris agreement is "a clear path of transition toward a model of low- or no-carbon economic development, encouraging solidarity and emphasizing the strong links that exist between fighting climate change and fighting poverty."