Vatican City ? Pope Benedict XVI called Tuesday for a new world financial order guided by ethics and the search for the common good, denouncing the profit-at-all-cost mentality blamed for bringing about the global financial meltdown.

In the third encyclical of his pontificate, Benedict pressed for reform of the United Nations and international economic and financial institutions to give poorer countries more of a say in international policy.

“There is urgent need (for) a true world political authority” that can manage the global economy, guarantee the environment is protected, ensure world peace and bring about food security for the poor, he wrote.

The document “Charity in Truth” was in the works for two years, and its publication was repeatedly delayed to incorporate the fallout from the crisis. It was released a day before leaders of the Group of Eight industrialized nations meet to coordinate efforts to deal with the global meltdown, signaling a clear Vatican bid to prod leaders for a financially responsible future and what it considers a more socially just society.