In the July 2009 Issue:
Grassoline
Forget ethanol from corn. New fuels made from weeds and waste could halve U.S. oil needs
Also in this issue:
• The Science of Economic Bubbles & Bursts
• Evolutionary Rights of Your Right & Left Brain
• Working on Mars: A Moon-Walking Scientist Tells How
• Squashing Superbugs: The Race for New Antibiotics
• Forensic Tools Battle Ivory Poachers

On Sale

• Featured articles:

• Drowning New Orleans; October 2001; by Mark Fischetti

• The Future of Stem Cells; July 2005; by Clive Cookson, John Rennie, Christine Soares, Richard Gardner, Tim Watson, Patti Waldmeir, Gary Stix

• 15 Answers to Creationist Nonsense; July 2002; by John Rennie

• Misleading Math about the Earth; January 2002; by Stephen Schneider, John P. Holdren, John Bongaarts and Thomas Lovejoy. Introduction by John Rennie