ABC News 20/20 Planet Earth - Seven Ways to Help Save the World

"ABC News takes viewers around the world to witness the key environmental challenges each continent faces and present working solutions from each place. The coverage outlines the most pressing environmental issues, including increasing and decreasing water levels, deforestation, species extinction and power usage.

-Africa: Elizabeth Vargas reports from an eco-lodge reserve near the Kruger wildlife area in South Africa to show how conservation can save species.

-Europe: Chris Cuomo reports from the city of lights, Paris, reporting on how people can conserve power and ways that science could help take carbon dioxide out of the air.

-South America: John Quiñones is in the Brazilian rain forest reporting on how conservation groups are working to replant the rain forest and how these forests can be worth more as a standing resource than as logs and soybean fields.

-North America: Jay Schadler reports from an astonishing solar power plant in Arizona on how alternative power solutions will help the energy grid.

-Australia: Bill Weir at the Great Barrier Reef off the Australian coast reports on how desalination plants may be an answer to water shortages.

-Asia: Cynthia McFadden from China explores what is perhaps the most fundamental issue of all - Is the world willing to make the changes needed?

Antarctica: ABC News reports on what progress has been made on the hole in the ozone.

ABC News also assembles seven leading experts on the environment -- from scientists to businessmen -- to weigh in on the most important problems and the most promising solutions.

Airdate: 4/20/2007
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