This is not something that happens far away to people that we don't know.
Global warming is something that happens to all of us, all at once.
In 1980 we declared the globe free of smallpox.
It was the largest campaign in United Nations history until the Iraq war. A hundred and fifty thousand people from all over the world, doctors of every race, religion, culture and nation, who fought side by side, brothers and sisters, with each other, not against each other, in a common cause to make the world better.
Smallpox was the worst disease in history. It killed more people than all the wars in history.
[Young people] are using their wealth in a way that their forefathers never did;
they're not waiting until they die to create foundations.