New York Times: When an elderly Pope Leo XIII released a document in 1891 on the rights of workers to unionize and of owners to hold private property, European capitalists and socialists alike cried foul. Why should we listen, they fumed, to a popes pronouncements on economics and politics? Now, 124 years later, Pope Francis has set off an uproar over his document on the environment and the threat of climate change, an encyclical released Thursday called Laudato Si , or Praise Be to You: On Care for Our Common...