U.S. energy consumption rose slightly in 2016 despite a significant decline in coal use. consumption/demandnatural gasoil/petroleumrenewables. Total U.S. energy production falls in 2016 after six consecutive years of increases. crude oilnatural gasnuclearpetroleum productsproduction/supplyrenewablestotal energy.
What Causes Throat Mucus & Phlegm? Post Nasal Drip:Post nasal drip occurs when an excessive amount of mucus accumulation in the nose and throat creates phlegm and causes coughing. Cold or Flu: During a cold or the flu, there is a production of clear, thin mucus in the nose and back of the throat.
Phlegm is a thick, slippery and sticky substance produced by the throat, bronchial passages, and lungs.Phlegm, also called sputum, contains mucus and sometimes other substances, such as dead cells, pus, or foreign particles, including dust.hlegm is a thick, slippery and sticky substance produced by the throat, bronchial passages, and lungs.