COVER: The Summit to Save the Earth
More than 100 heads of state, with a supporting cast of 30,000, are getting together in Rio to confront the world's most threatening environmental perils. Will it be a landmark in human history or a diplomatic fiasco of global proportions?
A festival of orations, concerts and art shows will make the summit an ecological Carnaval
Green Is Golden
Companies and nations cash in on technology
Future Trouble Spots
A map showing where the next environmental crises are likely to hit
U.S. POLITICS: Dan vs. Murphy