Britain and other European governments have been accused of underestimating the health risks from shipping pollution following research which shows that one giant container ship can emit almost the same amount of cancer and asthma-causing chemicals as 50m cars.
Polysomnography (PSG), a type of sleep study, is a multi-parametric test used in the study of sleep and as a diagnostic tool in sleep medicine. The test result is called a polysomnogram, also abbreviated PSG. The name is derived from Greek and Latin roots: the Greek ÏÎ¿Î»ÏÏ (polus for many, much, indicating many channels), the Latin somnus (sleep), and the Greek Î³ÏÎ¬ÏÎµÎ¹Î½ (graphein, to write).
Negative Population Growth, Inc. (NPG) is a national non-profit membership organization. NPGâs primary purpose is to educate American citizens and legislators regarding the damaging effects of population growth.mmigration (as it relates to population growth) is simply about numbers â not race, ethnicity, skin color, or nation of origin. It is not racist to question what continued population growth will mean for Americaâs resources and environment. NPG strongly condemns racism in all its forms.