### Question
Can you define what ocean acidification means?


### Answer
**Ocean acidification** is defined as the following in *33 U.S.C. § 3702*:

> the decrease in pH of the Earth's oceans and changes in ocean chemistry caused by chemical inputs from the atmosphere, including carbon dioxide

#### Citation:
  - *33 U.S.C. § 3702*
  - Heading: **CHAPTER 50-FEDERAL OCEAN ACIDIFICATION RESEARCH AND MONITORING**

