Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock ( ) or https://
means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Data for tables and figures. This dataset is associated with the following publication: Dominguez, T., J. Aurell, B. Gullett, R. Eninger, and D. Yamamoto. Characterizing emissions from open...
data.gov
An official website of the GSA's Technology Transformation Services