Carbon dioxide emission is a major contributor to climate change. However, there are several synonyms that can be used to refer to this environmental threat. One term that is commonly used is "carbon footprint." This refers to the total amount of carbon dioxide and other greenhouse gases that are emitted by an individual, organization, or product. Another term that is frequently used is "greenhouse gas emissions." This refers to the total amount of carbon dioxide, methane, nitrous oxide, and other gases that contribute to global warming. Other synonyms for carbon dioxide emission include "carbon output," "carbon pollution," and "carbon release." Regardless of the term used, it is important to reduce carbon emissions in order to combat climate change.