世界各国异口同声地要求将可持续发展置于全球思想和行动的中心，尤其是协助年轻人应对三重底线带来的挑战 — — 即经济福祉、环��可持续性和社会包容 — — 如何应对上述挑战将决定他们时代的特色。 里约+20峰会可以协助他们达到目的。
Around the world, the cry is rising to put sustainable development at the center of global thinking and action, especially to help young people to solve the triple-bottom-line challenge – economic well-being, environmental sustainability, and social inclusion – that will define their era. Rio+20 can help them to do it.