Trees will improve property values, take pollutants out of the air, help with water runoff.

The problem of dealing with the financial industry is being addressed today. You can measure it with interest rates coming down. You can measure it with the quantity of loans, and that sort of thing. The problem is, that nobody wants to take the loans. Once the banks are willing to give it, that's only half the problem.

Now, you might say – “But why should we pay people for doing what they’re supposed to do?” It’s a fair question – but think of it this way: Every other anti-poverty program that’s been tried has failed to get the national poverty rate below 11 percent... Why shouldn’t we experiment with a program built around the one strategy that has proven time and again to work wonders – capitalism?

Being an entrepreneur isn't really about starting a business. It's a way of looking at the world: seeing opportunity where others see obstacles, taking risks when others take refuge.

Fifty percent of the world's population lives in cities. In a couple of decades, 70 percent of the world's population will be living in cities. Cities are where the problem is. Cities are where the solution is, where creativity exists to address the challenges and where they have most impact. This is why, in 2005, the C40 was founded, an organization of cities that address climate change. It started with 18 cities; now it's 91. Cities simply are the key to saving the planet.

Despite its potential, the federal government has restricted funding for creating new cell lines - putting the burden of any future research squarely on the shoulders of the private sector. Government's most basic responsibility, however, is the health and welfare of its people, so it has a duty to encourage appropriate scientific investigations that could possibly save the lives of millions.

We can be certain that cities around the world will compete for the jobs that the next revival of the financial services industry will bring.