Författare: Donna Neil

On July 6, 2012, President Barack Obama signed the Moving Ahead for Progress in the 21st Century Act (MAP-21; P.L. 112-141). The act authorized spending on federal highway and public transportation p …

According to the Intergovernmental Panel on Climate Change (IPCC), aviation currently accounts for about 2 percent of human-generated global carbon dioxide emissions, the most significant greenhouse …