Discusses the measurement and conceptual difficulties of assessing the benefits of environmental improvements in monetary terms, in the context of a study undertaken to evaluate the health‐related benefits of improved air quality in a large, diverse urban population. Describes an...

The concept of geoeconomic time, introduced here, is based on the interface among economic activity, technology, and geophysical processes. Geoeconomic time is what should frame economic analysis of global warming policy. Otherwise, the analysis will be flawed. Application of geoeconomic time to...