As a child growing up during the Korean War, I knew poverty. I studied by candlelight.

Since I became Secretary-General, five years ago, I have seen youth participate at the United Nations as never before.

Achieving gender equality requires the engagement of women and men, girls and boys. It is everyone's responsibility.

Gender equality and women's empowerment have been a top priority for me from day one as Secretary-General. And I am committed to making sure that the U.N. leads by example.

Greenhouse gas pollution, through its contribution to global climate change, presents a significant threat to Americans' health and to the environment upon which our economy and security depends.

We have to have a way of dealing with this that engenders confidence, trust, gives us every chance of getting the right outcome and boosts both sustainability and economic return at the same time.

The basic science is very well established; it is well understood that global warming is due to greenhouse gases. What is uncertain is projections about specifics in the next few decades, by how much will the climate change.

I rarely fly, for environmental reasons more than anything else.