I knew Iran was different when I attended a World Population Conference in Cairo in 1994.

当我于1994年参与世界人口大会时我得知伊朗是不同于其他中东国家的。

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Economists at the conference focused on what steps could be taken to lessen the impact of climate change as the population expands and energy needs rise around the world.

与会的经济学家关注的焦点是，在目前世界各地人口持续增长、能源需求不断扩大的情况下能够采取哪些措施才能够减少气候变化所带来的影响。

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population competing for ever scarcer resources could make for an "unrecognizable" world by 2050, researchers warned at a major US science conference Sunday.

上周日，研究人员在一个大型美国科学会议上警告说，随着地球人口越来越多，越来越富，人们对匮乏资源的争夺可能会导致地球到2050年变得“面目全非”。

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The World Conference on Human Rights is deeply concerned about violations of human rights during armed conflicts, affecting the civilian population, especially women, children, the elderly and the disabled.

UNESCO: Vienna Declaration and Programme of Action