January 2013 | Volume 121 | Issue 1
On the Cover | Focus
The demand for air conditioning is booming in developing countries and expected to grow even more in coming decades, ironically adding more greenhouse gases to the atmosphere in the process of providing relief from the heat. Architects are responding with nature-inspired passive technologies that provide cooling with less climate impact.
Spheres of Influence
For decades, environmental risk assessors have tried to address interindividual variation by setting exposure limits low enough to protect the most sensitive subgroups in the population. Now they are looking for more targeted ways to address the underlying factors that govern individual susceptibility.