Elastic (goods and services)

Elastic goods and services generally have plenty of substitutes. Inelastic goods have fewer substitutes and price change doesn't affect quantity demanded as much. Some inelastic goods include gas, electricity, water, drinks, clothing, tobacco, food, and oil.

Global Warming Potential (GWP)

An index (i.e., a relative measure) of how much heat a greenhouse gas traps in the atmosphere over a chosen time horizon, relative to that of carbon dioxide. The GWP represents the combined effect of the differing times these gases remain in the atmosphere and their relative effectiveness in absorbing outgoing thermal infrared radiation. Although the most common time horizon is 100 years, GWP have been reported also for time horizons of 20 years and 500 years.

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).


One trillion (1x1012) grams = one million 1x106) metric tons (see Units of Mass in Metric System).


Wasting, also known as wasting syndrome, refers to the process by which a debilitating disease causes muscle and fat tissue to "waste" away leading to children of low weight for their height. Wasting is sometimes referred to as "acute malnutrition" because it is believed that episodes of wasting have a short duration, in contrast to stunting, which is regarded as chronic malnutrition (Source: Wikipedia).