Magazine
March-April 2005
March-April 2005
Volume: 93 Number: 2
As this long-exposure photograph of a Los Angeles freeway reminds us, Americans are heavily dependent on their cars—and the fuel needed to power them. If present trends continue, the nation’s appetite for gasoline will grow to nearly 200 billion gallons per year by 2030. Fuel-economy standards, imposed as a way to reduce consumption, have not been tightened since 1985. Would more severe requirements cost jobs? In "Fuel Efficiency and the Economy," Roger H. Bezdek and Robert M. Wendling argue that improved fuel-economy standards would in fact increase the number of workers employed and boost the economy. (Photograph by Ken Biggs/Photo Researchers, Inc.)
In This Issue
- Biology
- Communications
- Computer
- Economics
- Engineering
- Environment
- Evolution
- Mathematics
- Physics
- Policy
- Psychology
- Sociology
- Technology
The Ecology and Evolution of Hawaiian Spider Communities
Rosemary Gillespie
Evolution
The diversification of Hawaiian spiders illustrates universal principles behind community assembly on evolutionary and ecological scales
Monitoring Elusive Mammals
James Sanderson, Mogens Trolle
Environment
Unattended cameras reveal secrets of some of the world's wildest places
Fuel Efficiency and the Economy
Robert M. Wendling
Economics Technology
Input-output analysis shows how proposed changes to automotive fuel-efficiency standards would propagate through the economy
Predicting Addiction
Lisa Legrand, William Iacono, Matt McGue
Biology Environment Psychology Sociology
Behavioral genetics uses twins and time to decipher the origins of addiction and learn who is most vulnerable
