### Question
How is the term greenhouse gas intensity defined?


### Answer
The term **greenhouse gas intensity** is defined in *42 U.S.C. § 13389* as the following:

> the ratio of greenhouse gas emissions to economic output

#### Citation:
  - *42 U.S.C. § 13389*
  - Heading: **CHAPTER 134-ENERGY POLICY > SUBCHAPTER VII-GLOBAL CLIMATE CHANGE**

