### Question
What is the definition of ocean acidification?


### Answer
The definition of **ocean acidification** is as follows 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**

