Although the U.S. spends billions of dollars a year controlling water pollution, there is little empirical evidence of … comparable benefits. This study argues that measurement error in pollution data causes benefits to be underestimated. Using … nutrient pollution. Instrumental variable estimates of the effects of phosphorus on recreational use are an order of magnitude …

pollution. This paper strives to explore the pragmatic repercussions of CETP on MSMEs by the study of six CETP in operation at …

Proponents of vehicle buy back programs maintain the earlier retirement of older vehicles will reduce pollution … vehicle emission standards and systems, a proven method to reduce mobile source air pollution. It may be useful to expand …

and develop strategies, like EU, to reduce pollution, draw public attention and promote attendance. All come to the point …