The pope warned against the consequences of the "unprecedented race for energy sources" caused by "scarcity of energy supplies."

"What injustices and conflicts will be provoked by the race of energy sources? And what will be the reaction of those who are excluded from this race?" the pope said in the message ahead of World Peace Day on January 1.

"The destruction of the environment, its improper or selfish use, and the violent hoarding of the earth's resources cause grievance, conflicts and wars, precisely because they are the consequence of inhumane concept of development."

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