New York, September 24 (PL-RHC) --Peruvian President Ollanta Humala, has called for the "greatest alliance in history" to combat climate change which is threatening the very existence of mother Earth.

In his speech at the opening of the UN climate summit, the Peruvian president said his country expects the twentieth Conference the parties (COP20) to be held in December in Lima, to begin to build a partnership between developed and developing.

He said climate change was seriously endangering the survival of the planet by jeopardizing the economic, social and environmental life and security of mankind, which raises the inescapable duty to take action.

"The time to mobilize the greatest alliance in history on climate and development has come," Humala said, adding that this requires commitments of long-term and public planning, the mobilization of civil society and the private sector on a global scale.

Humala called on developed countries to demonstrate "the greatest responsibility that touches them" to the climate crisis. "This calls for substantive contributions to the Green Climate Fund and ratification of the Doha and the Kyoto Protocols.”

He noted the urgent obligation to agree on common rules of conduct for the future and said that building consensus for it is "the hardest test ever faced by the multilateral UN system."