### Question
Can you define what ecosystem means?


### Answer
**Ecosystem** is defined as the following in *42 U.S.C. § 17272*:

> any terrestrial, freshwater aquatic, or coastal ecosystem, including an estuary

#### Citation:
  - *42 U.S.C. § 17272*
  - Heading: **CHAPTER 152-ENERGY INDEPENDENCE AND SECURITY > SUBCHAPTER VI-CARBON CAPTURE AND SEQUESTRATION > Part B-Carbon Capture and Sequestration Assessment and Framework**

