For sure I would prefer Trump had not withdrawn from the Paris Agreement. But the fight against climate change is really done at the local level - whether it's cities, local governments or the private sector, corporate and individual. No matter what Trump says, nobody is going to go back and take the scrubber out or change back to polluting. The damage that Trump can do is if there are countries that are on the fence about whether they want to address the issue, this gives the naysayers, the doubters, those that don't want to do anything, a little more ammunition.

The politics of partisanship and the resulting inaction and excuses have paralyzed decision-making, primarily at the federal level, and the big issues of the day are not being addressed, leaving our future in jeopardy.

Cities with clean air gain an economic advantage, because where people want to live and work, businesses want to invest.

There's a fascinating statistic: One out of every four people in America has visited New York since 9/11. It is astounding. Now, I don't know how you count it; it's some people coming multiple times.

Most people won't have opportunity to do full-time service, but those lucky enough to have monetary wealth or some spare time really can make an enormous difference. As someone who's now in the public sector, and is seeing up-close-and-personal the real impact of what we do and what we give, I can tell you: every dollar and every volunteer help, in more ways than you can count.

I do not think that anybody should get paid for lousy performance. I've said that for a long time. If you work hard and you do good, you get paid well.

Like Israel, New York City's history has been defined by immigrants who come in search of freedom and the opportunity to build a better life. And like Israel, New York City has remained a target for terrorists who seek to destroy that freedom