Of coalâs many environmental impacts, none are as harmful, long term, and irreversible as global warming. Global warming is driven by emissions of heat-trapping gases, primarily from human activities, that rise into the atmosphere and act like a blanket, warming the earthâs surface.
An executive officer (often abbreviated XO) is generally a person responsible for running an organization, although the exact nature of the role varies depending on the organization. Contents.he US Air Force uses the term executive officer for officers assigned as personal staff officers to general officers. Their role is similar to aides-de-camp in the US Army, Marine Corps and Air Force and flag aides and flag lieutenants in the US Navy and Coast Guard.
Full Definition of EXECUTIVE. 1. : the executive branch of a government; also: the person or persons who constitute the executive magistracy of a state. 2.: a directing or controlling office of an organization. 3. : one that exercises administrative or managerial control. relating to the job of managing or directing other people in a company or organizaton. : of, relating to, or used by the people who manage or direct a company or organization. : responsible for making sure laws are carried out and for managing the affairs of a nation.