All Issues
Growing energy:
The challenge and promise of biofuels
Cover:
Biofuels could reduce dependence on fossil fuels, but they also may affect the price and availability of food crops. Biomass crops will likely include fast-growing grasses like Miscanthus, which can be used dry (shown) or green. Photo by Don Hamerman, University of Illinois, Urbana-Champaign.
Native bees enrich urban gardens
Cover:
A large carpenter bee (Xylocopa sp.[fam. Apidae]) visits a mint flower (Lamiaceae) in an urban California garden. In a recent study, a wide variety of native bees frequented ornamental plants in gardens across California (see page 113). Photo by Rollin Coville.
“Unequivocal” - How climate change will transform California
Cover:
In its 2007 report, the Intergovernmental Panel on Climate Change concluded that climate change is “unequivocal.” Wildfires are expected to become more commonplace in California, consistent with the predictions of climate-change models. Twelve large wildfires — fueled by the powerful Santa Ana winds that pushed flames through brush and grass dried from drought — raged in California on Oct. 23, 2007, clouded the air over the Pacific Ocean with dense plumes of smoke. Photo: NASA image by Jeff Schmaltz, MODIS Rapid Response Team, Goddard Space Flight Center
Injection protection: Treatments for sudden oak death
Cover:
In Redway (Humboldt County), spring-loaded mechanical syringes are used to inject phosphonate compounds into healthy tanoak trees, to study the effectiveness of this preventative treatment for sudden oak death (see pages 8 and 10). Photo: D.J. Schmidt/UC Berkeley
October-December 2009
Volume 63, Number 4
Volume 63, Number 4