Contents

30 July 1999
Vol 285, Issue 5428

About The Cover

Cover image expansion

COVER Low global energy prices for fossil fuels have slowed investment in renewable energy technologies such as wind turbines. Increases in energy demand, as well as supply limitations or disruptions, may bring about higher prices, and concerns about pollution and global warming may lead to restricted fossil fuel use. The Energy special section, beginning on page 677, focuses on alternative approaches for generating, distributing, and conserving energy. [Image: Peter Menzel]