Sometimes, history sneaks up on you. And sometimes you know it's coming.

I was always very detail-oriented, and in the time I spent in different roles - the elected official, the campaign manager - I had a tendency to want to push the creation of the product and really work on the critical path that would get to product.

Clearly, Mayor Bloomberg did some things right. I think he did a very good job on public health. He did a very good job on environment. I think he was right to achieve mayoral control of education. I don't think he then applied it the right way.

Excessive stop-and-frisk divides communities. That's why the New York City Police Department has moved away from it.

Americans know our only response in the face of mounting risks from climate change must be the swift transition to a clean energy economy. We do not have the luxury of burying our heads in the sand.

Foreign policy is inseparable from domestic policy now. Is terrorism foreign policy or domestic policy? It's both. It's the same with crime, with the economy, climate change.

Pigeons are among the most maligned urban wildlife despite the fact that human beings brought them to our shores and turned them loose in our cities - not something that they chose.

As Americans, we have traditionally been the optimists sporting the 'can-do' attitude. But when it comes to addressing climate adaptation and resiliency, we seem to be more 'can't do' than 'can-do.'