Urban leaders offer a model for tackling big global problems that nation-states are failing to address.
Innovations that address global challenges such as education, environment, and health
The founder of the Worldwatch Institute and the Earth Policy Institute pursues an unfinished agenda.
Investment in "hyperdense" cities is, according to one writer, the key to solving many problems that afflict US society.
To address social conflicts, we must learn to balance "independent" and "interdependent" selves, two cultural psychologists argue.
Internet technology can help us to connect, globally and otherwise, but only if we structure it well.
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However Long the Night: Molly Melching's Journey to Help Millions of African Women and Girls Triumph
The saga of Molly Melching and Tostan, her Africa-based organization, illustrates the power of community-led change.
In the world that's now emerging, pre-modern practices that emphasize personal relationships are returning to prominence.
The disruptive force of the "new philanthropy" holds the promise of helping to reduce inequality. But will it actually do so?
Environmental conservation and business investment are not mutually exclusive, argues the CEO of the Nature Conservancy.
The vast majority of neighborhoods in American cities do not "trade places." Instead, concentrated poverty and its opposite, concentrated affluence, are surprisingly persistent.