Running for office is important, and you don't really need more than to be right on the issues, and to be able to articulate what it is you believe. You don't need a certain background. You don't need to be a lawyer. You don't need to have some professional degree.

When in some communities selling drugs is so lucrative that that's a pretty big enticement that we have to break down. Part of that is by making opportunities and paying decent wages.

I think a lot of politicians, rightfully so, understand that their political futures are tied to how many times people see their names in print. The press is so accustomed to politicians wanting those things, it's a surprise when somebody's like, 'Whatever, I'm not really worried about those things.'

Already renewable energy advocates are noting that the 42 miles of above-ground right-of-way between Yosemite and the city could be fitted with enough solar panels to generate at least 40 megawatts per year - a proposal the San Francisco Public Utilities Commission has never seriously considered because they currently aren't required to do so.

I've been active in animal rights and all kinds of environmental stuff and children's charities over the years.

Governments have to conclude a fair, universal, and binding climate agreement, by which every country commits to reducing emissions of greenhouse gases.

I have a private plane. But I fly commercial when I go to environmental conferences.

You can't solve climate change by everybody individually buying a more efficient car and throwing out less stuff. You have to make national changes through national policy.