U.S. Environmental Protection Agency


The United States Environmental Protection Agency (U.S. federal agency) sets protocols in place to protect human health and the environment.

The agency regularly raises awareness about health safety and the environment by publishing articles using data visualization; In this case, the agency is using a stacked column chart to compare the number of hybrid electric vehicles (HEVs), broken down by car model that were sold within the United States between 1999 and 2015.

Check out more stacked column chart.