We come together here in Copenhagen because climate change poses a grave and growing danger to our people. You would not be here unless you – like me – were convinced that this danger is real. This is not fiction, this is science. Unchecked, climate change will pose unacceptable risks to our security, our economies, and our planet. That much we know.

So the question before us is no longer the nature of the challenge – the question is our capacity to meet it. For while the reality of climate change is not in doubt, our ability to take collective action hangs in the balance.

I believe that we can act boldly, and decisively, in the face of this common threat. And that is why I have come here today.