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.
Some of the most common viral infections that produce clear phlegm include sinus infections, the common cold, and influenza. Usually, your body will fight these infections on its own. You can experience clear phlegm during either a viral or a bacterial infection, but clear mucus is more common during viral infections.ther kinds of infections that produce clear phlegm include the common cold and influenza. Both of these infections are viral infections, and both can cause you to produce an excess of clear mucus that is present in your nose and the back of your throat during the beginning and ending stages of the illnesses.