Qatar on Wednesday said that energy crisis and climate change are the pressing challenges for the world, and there will be no peace and security in the globe when world civilization is threatened by an energy crisis, which is "far greater than any kind of war."

During the general debate of the UN General Assembly, Sheikh Hamad Bin Khalifa Al-Thani, Emir of Qatar, said: "One such pressing crisis is that of finding energy alternatives. Another similarly vital question is that of the climate change and its impact on the environment and life on this planet."

"As for the issue of energy, it would seem that oil-producing countries benefit from the continuous world dependence on their production," he said. "I would like however to emphasize to you that we consider the security of the world our security and the prosperity of the world our prosperity."

"There could be neither peace nor prosperity when the world civilization is threatened by an energy crisis that is far greater than any kind of war, even a nuclear one," he said.

Meanwhile, he thanked UN Secretary-general Ban Ki-moon for organizing the Summit on Climate Change "to discuss this most serious challenge that threatens our world -- not only its security, but its life itself as well."