Shaun Donovan was sworn in as the 40th Director of the Office of Management and Budget on July 28, 2014. Donovan has committed his life to public service focused on good government and smart investment, while also building his leadership skills in the private, non-profit, and academic sectors.
A greenhouse gas (sometimes abbreviated GHG) is a gas in an atmosphere that absorbs and emits radiation within the thermal infrared range. This process is the fundamental cause of the greenhouse effect.The primary greenhouse gases in Earth's atmosphere are water vapor, carbon dioxide, methane, nitrous oxide, and ozone.Without greenhouse gases, the average temperature of Earth's surface would be about 15 Â°C (27 Â°F) colder than the present average of 14 Â°C (57 Â°F).he primary greenhouse gases in Earth's atmosphere are water vapor, carbon dioxide, methane, nitrous oxide, and ozone. Without greenhouse gases, the average temperature of Earth's surface would be about 15 Â°C (27 Â°F) colder than the present average of 14 Â°C (57 Â°F).
any of the gases whose absorption of solar radiation is responsible for the greenhouse effect, including carbon dioxide, methane, ozone, and the fluorocarbons. greenhouse gas. Any of the atmospheric gases that contribute to the greenhouse effect. Greenhouse gases include carbon dioxide, water vapor, methane, and nitrous oxide.