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.
DragonImages/iStock/Getty Images. An executive administrator, often called an executive assistant, is an administrative professional who provides clerical, operational and personal support to an executive level manager.These roles are often found within large organizations.andidates for the role of executive administrator must possess a high school diploma or its equivalent. Additionally, many employers give preference to those who possess a four-year degree.