汉译英:要减缓世界人口的增长需要做些什么?

what is need to do to ease the increasing world population?

What can we do to slow down the pace of population growing?

What should we do to slow down the increasing of the population of the word?

what needs to be done to slow down the growth of global population?
what measures should we take to slow down the growth of global population?

What should people do to reduce the population of the world?
希望能够帮到楼主