But it will depend on young people like you being open to new ideas and new possibilities. And it will require young people like you never to stereotype or assume the worst about other people.

Ultimately, if you think about all the youth that everybody has mentioned here in Africa, if everybody is raising living standards to the point where everybody has got a car and everybody has got air conditioning, and everybody has got a big house, well, the planet will boil over - unless we find new ways of producing energy.

And to those nations like ours that enjoy relative plenty, we say we can no longer afford indifference to the suffering outside our borders; nor can we consume the world's resources without regard to effect. For the world has changed, and we must change with it.

The people of the United Kingdom have spoken, and we respect their decision. The special relationship between the United States and the United Kingdom is enduring, and the United Kingdom's membership in Nato remains a vital cornerstone of US foreign, security and economic policy.

In our democracy and our civic discourse, it seems as if folks who take religion the most seriously are sometimes also those who are suspicious of those not like them.

Every three weeks, we bring online as much solar power as we did in all of 2008...That’s why, over the past six years, we’ve done more than ever before to combat climate change, from the way we produce energy, to the way we use it.

Any so-called leader who does not take this issue (climate change) seriously or treats it like a joke is not fit to lead