Sustaining the Planet In the Next Millenium

Environmental optimism shone thorugh at the groundbreaking 1992 Earth Summit in Rio de Janeiro. Delegates pledged to tackle difficult agenda items: climate change, pollution, and preserving biodiversity.

As 60,000 delegates and 100 world leaders head to Johannesburg for the upcoming Earth Summit...how much has actually changed? What have been the environmental successes and failures? Is there still hope for the planet's future?

In this hour, the environmental reality of the 21st century, from Rio to Johannesburg and beyond.

Guests:

Adil Najam, Professor of International Environmental Policy at Boston University and co-author of "Civic Entrepreneurship: Civil Society Perspectives on Sustainable Development"

Daniel Esty, Director of the Center for Environmental Law & Policy at Yale University