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).
Carbon dioxide is one of several greenhouse gases that help in this. Carbon dioxide captures some of this radiated heat and keeps it in the atmosphere. Some other greenhouse gases are water vapor, methane, nitrous oxide, and CFCs. In fact, any gas with three or more atoms acts as a greenhouse gas.arbon dioxide is the most commonly cited greenhouse gas because of  its natural abundance in the atmosphere. It constitutes 80% of the  non-condensing greenhouse gases. Exp â¦ erts believe that the removal  of CO2 will cool the Earth by 30 degrees Celsius.