September 2005
Scientific American Magazine

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Cover; September 2005; by Staff Editor; 1 Page(s)

Table of Contents; September 2005; by Staff Editor; 2 Page(s)

SA Perspectives: Science at the Crossroads; September 2005; by Staff Editor; 1 Page(s)

How science guides the world's future

How to Contact Us and On the Web; September 2005; by Staff Editor; 1 Page(s)

Letters to the Editors; September 2005; by Staff Editor; 2 Page(s)

50, 100 and 150 Years Ago; September 2005; by Staff Editor; 1 Page(s)

Observing Earth; Diverting Water; Girdling the World

Mapping Mercury; September 2005; by Rebecca Renner; 2 Page(s)

Hot-spot unknowns complicate mercury regulations

Blue-Green Acres; September 2005; by Patrick Di Justo; 2 Page(s)

Fighting factory CO₂ emissions with cyanobacteria

Flagging Copy Rights; September 2005; by Wendy M. Grossman; 2 Page(s)

Piracy protection may redefine home recording

Clash in Cambridge; September 2005; by John Horgan; 4 Page(s)

Science and religion seem as antagonistic as ever

Silicon Sniffer; September 2005; by Steven Ashley; 2 Page(s)

Dime-size detector to fight bomb attacks

Chatting Up Cells; September 2005; by Charles Q. Choi; 1 Page(s)

Nano reservoirs on a chip tell stem cells what to do

By the Numbers: Myths of the City; September 2005; by Rodger Doyle; 1 Page(s)

Problems of urbanization are mostly false stereotypes

News Scan Briefs; September 2005; by JR Minkel, Charles Q. Choi; 2 Page(s)

Battle of the Sexes; Back-Channel Chatter; Working Corridors; In Meatro; A Better Time Machine; The Comet's White Glare

Skeptic: Rumsfeld's Wisdom; September 2005; by Michael Shermer; 1 Page(s)

Where the known meets the unknown is where science begins

Insights: A Proposition for Stem Cells; September 2005; by Sally Lehrman; 2 Page(s)

Last fall Robert Klein got Californians to vote for embryonic stem cell work. That was a piece of cake compared with getting the resulting research agency off the ground

The Climax of Humanity; September 2005; by George Musser; 4 Page(s)

Demographically and economically, our era is unique in human history. Depending on how we manage the next few decades, we could usher in environmental sustainability--or collapse

Human Population Grows Up; September 2005; by Joel E. Cohen; 8 Page(s)

As we swell toward nine billion in the next half a century, humanity will undergo historic changes in the balance between young and old, rich and poor, urban and rural. Our choices now and in years ahead will determine how well we cope with our coming of age

Can Extreme Poverty Be Eliminated?; September 2005; by Jeffrey D. Sachs; 10 Page(s)

Market economics and globalization are lifting the bulk of humanity out of extreme poverty, but special measures are needed to help the poorest of the poor

Sustaining the Variety of Life; September 2005; by Stuart L. Pimm and Clinton Jenkins; 8 Page(s)

A new understanding of how species become extinct suggests how to preserve them--and at a cost that doesn't break the bank

More Profit with Less Carbon; September 2005; by Amory B. Lovins; 10 Page(s)

Focusing on energy efficiency will do more than protect Earth's climate--it will make businesses and consumers richer

The Big Potential of Small Farms; September 2005; by Paul Polak; 8 Page(s)

With the help of affordable irrigation and access to markets, farmers in the developing world can grow more food and climb out of poverty

Public Health in Transition; September 2005; by Barry R. Bloom; 8 Page(s)

Chronic disorders such as heart disease and diabetes, once common only in the industrial nations, are now sweeping the rest of the globe. Meanwhile the threat of infectious diseases still looms large. New public health priorities are urgently needed

Economics in a Full World; September 2005; by Herman E. Daly; 8 Page(s)

The global economy is now so large that society can no longer safely pretend it operates within a limitless ecosystem. Developing an economy that can be sustained within the finite biosphere requires new ways of thinking

How Should We Set Priorities?; September 2005; by W. Wayt Gibbs; 8 Page(s)

The world faces no shortage of problems--or of good ideas to solve them. Which should we tackle next? Even as leaders converge on some answers, new markets are being set up to preempt politics

Working Knowledge: Private and Cool; September 2005; by Mark Fischetti; 2 Page(s)

Smart glass

Reviews: Everything That Isn't Nature; September 2005; by Anne Eisenberg; 3 Page(s)

Infrastructure guides readers through the technological landscape and finds the wonders hiding in plain sight

Anti Gravity: Go Fourth; September 2005; by Steve Mirsky; 1 Page(s)

News items closely, or distantly, related to America's birthday party

Ask the Experts; September 2005; by Staff Editor; 1 Page(s)

Are food cravings the body's way of telling us that we are lacking nutrients? What causes feedback in a guitar or microphone?