Whole communities are growing up without fathers or male role models. Bringing up a family in the best of circumstances is not easy. To try to do it by placing the entire burden on women - 91% of single-parent families in Britain are headed by the mother, according to census data - is practically absurd and morally indefensible.

While we can remember the past, we cannot write the future. Only our children, the future of our community, can do that.

Britain, relative to the U.S., is a highly secular society. Philanthropy alone cannot fill the gap left by government cutbacks. And the sources of altruism go deep into our evolutionary past.

If we are to negotiate the coming years safely, we may need a new kind of leadership. To put it more precisely, we need the rediscovery of an ancient kind of leadership that has rarely been given the prominence it deserves. I mean the leader as teacher.

There are cities that get by on their good looks, offer climate and scenery, views of mountains or oceans, rockbound or with palm trees. And there are cities like Detroit that have to work for a living.

We created the Cabinet Committee on the Environment to review the environmental implications of all government initiatives. I think what made us successful was the fact that it was a sustained approach. We did something new every year.

I have run large organizations, I know what it takes to create a healthy business climate, and I have more experience than Jerry Brown doing that. So it'll be a stark contrast, a career politician vs. someone who has met a payroll, gotten a return on investment, knows how to use technology to do more with less.

In the grand scheme of things, polar bears are the least of our problems when it comes to climate change.