Emissions of pollutants from motor vehicles have been the focus of longstanding concerns for both governments and the public at large because of their impact on air quality and human health. More recently, emissions of greenhouse gases have been of growing concern because of their impacts on...

Serbia is transitioning to an environmentally sustainable, low-carbon, climate-resilient economy, but the transition must be accelerated in view of climate change and increasing air pollution. Serbia has Europe's worst per capita record for pollution-related deaths, and the environmental...

In September 2011, the National Highway Traffic Safety Administration and U.S. Environmental Protection Agency promulgated the first-ever federal regulations mandating fuel economy improvements for heavy-duty commercial vehicles. While the performance-based approach to these rules offers...