Cabbies in particular seem to like discussing the fate the Earth.

For most people, using the Internet broadens their sense of who 'we' is and actually ends up leaving us in a place of greater compassion and understanding. It leaves us more connected to a larger group of people and more at one with a lot more people in our community.

Urban retrofitting: creating different sorts of spaces and uses out of places that are already there.

I think there's a gigantic generation gap in terms of how people understand the Internet and how much they think technology is an important factor in social change.

In almost all city governments in America, the small group of people who don't want change are able to block change.

Powerful people doing bad things LIKE cynical, despairing citizens.

Clean air and water, a diversity of animal and plant species, soil and mineral resources, and predictable weather are annuities that will pay dividends for as long as the human race survives – and may even extend our stay on Earth.