Animal Share of Diet: Percentage of calories in an average diet from animal products, including meat, seafood, and dairy.

Built Environment Land: Area devoted to businesses, residences, roads, parking lots, parks, landfills, burial grounds, and other uses. In thousand hectares (kha).

CO2 Emissions: Carbon dioxide emitted from energy combustion, industrial processes, and land change, in billion tonnes (gigatonnes) carbon (GtC).

CO2 Emissions per capita: Average per person emissions, in tonnes of carbon (tC).

Cropland: Area under cultivation, in thousand hectares (kha).

Crop Output: Agricultural output, in million kilotons (kt).

Crop Exports: Export crop products from a region, in millions of kilotons (kt).

Diet: Average calories consumed per person per day (calories per capita per day). (See also Animal Share of Diet)  

Energy Demand: Total primary requirements, in exajoules (EJ).

Energy per capita: Total energy required per person, in gigajoules (GJ)

EJ: Exajoule, or 10^18 Joules

Fertilizer Use: Agricultural application, in kilotons (kt).

Fish Output: Fish and other seafood caught or farm raised, in kilotons (kt).

Forest Area: Protected areas and exploitable and unexploitable forest area, but excluding forest plantations, in kilohectares (kha).

GDP: Gross Domestic Product, measured in millions of PPP dollars.

GJ: Gigajoules, or 10^9 Joules.

GtC: Gigatons of carbon.

Hunger: Chronically hungry people, in millions.

Income: Average GDP per capita, in PPP dollars per person.

International Equity: Ratio of average incomes in poor countries (non-OECD regions) to average income in rich countries (OECD regions).

Irrigated Cropland: Agricultural areas relying on irrigation (rather than natural rainfall), in kilohectares (kha).

Irrigation Water: Volume of water used for irrigation, in trillions of cubic meters (10^12 m^3).

kha: kilohectares, or 1,000 hectares (ha).

kt: kilotons, or 1,000 tonnes (t).

Livestock in Feedlots: Percentage of livestock fed through concentrated feeding operations, rather than open grazing.

Livestock Output: All animal products produced, in millions of tonnes (t).

OECD and non-OECD: The Organisation for Economic Cooperation and Development (OECD) macro-region includes North America, Western Europe, and Pacific OECD regions. The non-OECD macro-region includes the remaining regions.

Other Land Areas: Land areas not categorized as built environment, cropland, pasture/grazing land, tree plantations, or forest area, such as deserts and mountains, in kilohectares (kha).

Pasture/Grazing Land: Land used for livestock grazing, in kilohectares (kha).

Plantation: Tree plantations for fuelwood and wood products, in kilohectares (kha).

Population: In millions of people.

PPP (Purchasing Power Parity): Used to compare incomes and economic activity across countries using a common basket of goods to compare currency values (rather than exchange rates).

Primary Energy Requirements: Includes all domestic energy sources (fossil fuels, nuclear, and renewables) and imports.

Quality of Development Index (QDI): Βlends several indicators on well-being, community, and environment (See Technical Documentation p. 323 for details).

Region: Scenarios are analyzed for 11 global regions.

Renewable Energy: Percentage of total energy demand from renewable sources (solar, wind, hydropower, biomass, etc.).

Richest 10% to Poorest 10%: A measure of inequality within a region: the ratio of the average income of the richest 10% of the population to the average income of the poorest 10% of the population.

Scenarios: A hypothetical narrative or pathway of how the future may unfold. See Scenario Descriptions for summaries of the Market Forces, Policy Reform, Great Transition and Fortress World scenarios that are quantified in the motion chart.

Solid Waste: Quantity generated annually, in millions of kilotons (kt).

SOx Emissions: Sulphur dioxide emissions, in million tonnes (10^6 t).

Toxic Emissions: Quantity of toxic chemicals emitted from industrial processes and consumer use, in millions of tonnes (10^6 t).

Urban Population: People living in urban areas, in millions.

Waste Incinerated: Percentage of solid waste incinerated.

Waste Landfilled: Percentage of solid waste disposed of in landfills.

Waste Recycled: Percentage of solid waste recycled.

Water Stress: Number of people in areas with inadequate freshwater resources for human, economic, and environmental needs, in millions (See Technical Documentation p. 231 for details).

Water Use: Total freshwater withdrawals from natural sources, desalinization facilities, and recycled waste water, in trillion cubic meters (10^12 cubic meters).

Water Use per capita: Water use per person, in cubic meters (m^3).

Water Use/Resources: The ratio of freshwater withdrawals from natural sources to renewable freshwater flows in a region. Used to compute water stress.

Work Time: Average number of hours worked per capita per year.