As an immigrant, I chose to live in America because it is one of the freest and most vibrant nations in the world. And as an immigrant, I feel an obligation to speak up for immigration policies that will keep America the most economically robust, creative and freedom-loving nation in the world.

We could make a difference just by holding our emissions steady as our businesses continue to grow. But that doesn't seem to be enough: we want to go all the way to zero... Today, I am announcing our intention to be carbon neutral, across all our businesses, by 2010.

Climate change poses clear, catastrophic threats. We may not agree on the extent, but we certainly can't afford the risk of inaction.

I think everyone's against abortion.

As an immigrant, I chose to live in America because it is one of the freest and most vibrant nations in the world. And as an immigrant, I feel an obligation to speak up for immigration policies that will keep America the most economically robust, creative and freedom-loving nation in the world.

No one's going to be able to operate without a grounding in the basic sciences. Language would be helpful, although English is becoming increasingly international. And travel. You have to have a global attitude.

We're not a manufacturer, or an airline, but we do use energy. Printing and publishing newspapers, producing films and television programs, operating 24-hour newsrooms. It all adds carbon to the atmosphere.