Greenhouse Gas (GHG)
Any of the atmospheric gases, both natural and anthropogenic, that contribute to the greenhouse effect by absorbing infrared radiation produced by solar warming of the Earth's surface. Water vapor (H2O), carbon dioxide (CO2), methane (CH4), nitrous oxide (NO2) and ozone (O3) are the primary greenhouse gases in the atmosphere.
Greenhouse Gas Effect
Heat trapping effect of greenhouse gases in the troposphere (lowest portion of the earth's atmosphere)
Stunted growth
Stunted growth also known as stunting and nutritional stunting, is a reduced growth rate in human development, characterized by a low height for one's age. It is a primary manifestation of malnutrition (or more precisely undernutrition) and recurrent infections, such as diarrhea and helminthiasis, in early childhood and even before birth, due to malnutrition during fetal development brought on by a malnourished mother. An estimated 162 million children under 5 years of age, or 25%, were stunted in 2012 (Source: Wikipedia).