Skip to main content

Glossary definitions

The IPBES glossary terms definitions page provides definitions of terms used in IPBES assessments. Some definitions in this online glossary have been edited for consistency. Please refer to the specific assessment glossary for citations/authorities of definitions. 

We invite you to report any errors or omissions to [email protected].

Concept Definition Deliverable(s)
grazing land management

The strategies used by people to promote both high quality and quantity of forage for domesticated livestock.

Land degradation and restoration assessment
great acceleration

Great Acceleration refers to the acceleration of human-induced changes of the second half of the 20th century, unique in the history of human existence. Many human activities reached take-off points and sharply accelerated towards the end of the century.

Global assessment (1st work programme)
green bonds

A mode of private financing that tap the debt capital market through fixed income instruments (i.e. bonds) to raise capital to finance climate-friendly projects in key sectors of, but not limited to, transport, energy, building and industry, water, agriculture and forestry and waste.

Global assessment (1st work programme), Sustainable use assessment
green growth

Green growth means fostering economic growth and development while ensuring that natural assets continue to provide the resources and environmental services on which our well-being relies.

Global assessment (1st work programme)
green hunting

Green hunting occurs with tranquilizer dart guns and the animals are released alive. This is typically performed for veterinary procedures or translocation, and has been suggested as an alternative to lethal forms of hunting.

Sustainable use assessment
green infrastructure

Green infrastructure refers to the natural or semi-natural systems (e.g. riparian vegetation) that provide services for water resources management with equivalent or similar benefits to conventional (built) “grey” infrastructure (e.g. water treatment plants).

Global assessment (1st work programme)
green public procurement

A process whereby public authorities seek to procure goods, services and works with a reduced environmental impact throughout their life-cycle when compared to goods, services and works with the same primary function that would otherwise be procured.

Asia-Pacific assessment
green revolution

Period of food crop productivity growth that started in the 1960s due to a combination of high rates of investment in crop research, infrastructure, and market development and appropriate policy support, and whose environmental impacts have been mixed: on one side saving land conversion to agriculture, on the other side promoting an overuse of inputs and cultivation on areas otherwise improper to high levels of intensification, such as slopes.

Sustainable use assessment
green revolution

A set of research and the development of technology transfer initiatives occurring between the 1930s and the late 1960s (with prequels in the work of the agrarian geneticist Nazareno Strampelli in the 1920s and 1930s), that increased agricultural production worldwide, particularly in the developing world, beginning most markedly in the late 1960s. The initiatives resulted in the adoption of new technologies, including: new, high- yielding varieties (HYVs) of cereals, especially dwarf wheats and rices, in association with chemical fertilizers and agro-chemicals, and with controlled water-supply (usually involving irrigation) and new methods of cultivation, including mechanization. All of these together were seen as a package of practices to supersede traditional technology and to be adopted as a whole.

Land degradation and restoration assessment, Global assessment (1st work programme)
green revolution

Period of food crop productivity growth that started in the 1960s due to a combination of high rates of investment in crop research, infrastructure, and market development and appropriate policy support, and whose environmental impacts have been mixed: on.

green water

Water transpired through plants to the atmosphere.

Land degradation and restoration assessment
greenhouse gas

Those gaseous constituents of the atmosphere, both natural and anthropogenic, that absorb and emit radiation at specific wavelengths within the spectrum of infrared radiation emitted by the Earth’s surface, the atmosphere, and clouds. This property causes the greenhouse effect.

Land degradation and restoration assessment
greenhouse gas

Greenhouse gases are those gaseous constituents of the atmosphere, both natural and anthropogenic, that absorb and emit radiation at specific wavelengths within the spectrum of terrestrial radiation emitted by the Earth’s surface, the atmosphere itself, and by clouds. This property causes the greenhouse effect. Water vapour (H2O), carbon dioxide (CO2), nitrous oxide (N2O), methane (CH4) and ozone (O3) are the primary greenhouse gases in the Earth’s atmosphere. Moreover, there are a number of entirely human-made greenhouse gases in the atmosphere, such as the halocarbons and other chlorine- and brominecontaining substances, dealt with under the Montreal Protocol. Beside CO2, N2O and CH4, the Kyoto Protocol deals with the greenhouse gases sulphur hexafluoride (SF6), hydrofluorocarbons (HFCs) and perfluorocarbons (PFCs).

Global assessment (1st work programme)
greenhouse gas

Greenhouse gases are those gaseous constituents of the atmosphere, both natural and anthropogenic, that absorb and emit radiation at specific wavelengths within the spectrum of terrestrial radiation emitted by the Earth’s surface, the atmosphere itself, and by clouds. This property causes the greenhouse effect. Water vapour (H2O), carbon dioxide (CO2), nitrous oxide (N2O), methane (CH4) and ozone (O3) are the primary greenhouse gases in the Earth’s atmosphere. Moreover, there are a number of entirely human-made greenhouse gases in the atmosphere, such as the halocarbons and other chlorine- and bromine containing substances, dealt with under the Montreal Protocol. Beside CO2, N2O and CH4, the Kyoto Protocol deals with the greenhouse gases sulphur hexafluoride (SF6), hydrofluorocarbons (HFCs) and perfluorocarbons (PFCs).

Sustainable use assessment
grey water

Any wastewater that is not contaminated with faecal matter.

Land degradation and restoration assessment
gross primary production

Total terrestrial Gross Primary Production (GPP) is the total mass of carbon taken out of the atmosphere by plant photosynthesis.

Land degradation and restoration assessment
gross primary productivity

The amount of carbon fixed by the autotrophs (e.g. plants and algaes).

Global assessment (1st work programme)
uncertainty

Any situation in which the current state of knowledge is such that: the order or nature of things is unknown, the consequences, extent, or magnitude of circumstances, conditions, or events is unpredictable, and credible probabilities to possible outcomes cannot be assigned. Uncertainty can result from lack of information or from disagreement about what is known or even knowable. Uncertainty can be represented by quantitative measures (e.g., a range of values calculated by various models) or by qualitative statements (e.g., reflecting the judgment of a team of experts).

Sustainable use assessment
uncertainty

Any situation in which the current state of knowledge is such that (1) the order or nature of things is unknown, (2) the consequences, extent, or magnitude of circumstances, conditions, or events is unpredictable, and (3) credible probabilities to possible outcomes cannot be assigned.

Pollination assessment
uncertainty

Any situation in which the current state of knowledge is such that: 1. the order or nature of things is unknown, the consequences, extent, or magnitude of circumstances, conditions, or events is unpredictable, and 2. credible probabilities to possible outcomes cannot be assigned. 3. Uncertainty can result from lack of information or from disagreement about what is known or even knowable. Uncertainty can be represented by quantitative measures (e.g. a range of values calculated by various models) or by qualitative statements (e.g. reflecting the judgment of a team of experts).

Asia-Pacific assessment, Americas assessment
uncertainty

Any situation in which the current state of knowledge is such that: the order or nature of things is unknown, the consequences, extent, or magnitude of circumstances, conditions, or events is unpredictable, and credible probabilities to possible outcomes cannot be assigned. Uncertainty can result from lack of information or from disagreement about what is known or even knowable. Uncertainty can be represented by quantitative measures (e.g. a range of values calculated by various models) or by qualitative statements (e.g. reflecting the judgment of a team of experts).

Africa assessment
uncertainty

see linguistic uncertainty, decision uncertainty, stochastic uncertainty, and scientific uncertainty.

Scenarios and models assessment
uncertainty

Any situation in which the current state of knowledge is such that: (i). the order or nature of things is unknown; (ii). the consequences, extent, or magnitude of circumstances, conditions, or events is unpredictable; and (iii). credible probabilities to possible outcomes cannot be assigned. Uncertainty can result from lack of information or from disagreement about what is known or even knowable. Uncertainty can be represented by quantitative measures (e.g. a range of values calculated by various models) or by qualitative statements (e.g. reflecting the judgment of a team of experts).

Land degradation and restoration assessment
units of analysis

The IPBES Units of Analysis result from subdividing the Earth’s surface into units solely for the purposes of analysis. The following have been identified as IPBES units of analysis globally: Terrestrial: Tropical and subtropical dry and humid forests Temperate and boreal forests and woodlands Mediterranean forests, woodlands and scrub Tundra and High Mountain habitats Tropical and subtropical savannas and grasslands Temperate Grasslands Deserts and xeric shrublands Wetlands - peatlands, mires, bogs Urban/Semi-urban Cultivated areas (incl. cropping, intensive livestock farming etc.) Aquatic, including both marine and freshwater: Cryosphere Aquaculture areas Inland surface waters and water bodies/freshwater Shelf ecosystems (neritic and intertidal/littoral zone) Open ocean pelagic systems (euphotic zone) Deep-Sea Coastal areas intensively used for multiple purposes by humans These IPBES terrestrial and aquatic units of analysis serve as a framework for comparison within and across assessments and represent a pragmatic solution. The IPBES terrestrial and aquatic units of analysis are not intended to be prescriptive for other purposes than those of IPBES assessments. They are likely to evolve as the work of IPBES develops.

Sustainable use assessment
units of analysis

The IPBES Units of Analysis result from subdividing the Earth's surface into units solely for the purposes of analysis. The following have been identified as IPBES units of analysis globally: Terrestrial: Tropical and subtropical dry and humid forests, Temperate and boreal forests and woodlands, Mediterranean forests, woodlands and scrub, Tundra and High Mountain habitats, Tropical and subtropical savannas and grasslands, Temperate Grasslands, Deserts and xeric shrublands, Wetlands - peatlands, mires, bogs, Urban/Semi-urban, Cultivated areas (incl. cropping, intensive livestock farming etc.).; Aquatic, including both marine and freshwater: Cryosphere, Aquaculture areas, Inland surface waters and water bodies/ freshwater, Shelf ecosystems (neritic and intertidal/ littoral zone), Open ocean pelagic systems (euphotic zone), Deep-Sea, Coastal areas intensively used for multiple purposes by humans.These IPBES terrestrial and aquatic units of analysis serve as a framework for comparison within and across assessments and represent a pragmatic solution. The IPBES terrestrial and aquatic units of analysis are not intended to be prescriptive for other purposes than those of IPBES assessments. They are likely to evolve as the work of IPBES develops.

Global assessment (1st work programme), Americas assessment
units of analysis

The IPBES Units of Analysis result from subdividing the Earth's surface into units solely for the purposes of analysis. The following have been identified: IPBES units of analysis (terrestrial): Tropical and subtropical dry and humid forests; Temperate and boreal forests and woodlands; Mediterranean forests, woodlands and scrub; Tundra and High Mountain habitats; Tropical and subtropical savannas and grasslands; Temperate Grasslands; Deserts and xeric shrublands; Wetlands - peatlands, mires, bogs; Urban/Semi-urban; Cultivated areas (incl. cropping, intensive livestock farming etc.).; IPBES units of analysis (aquatic, including both marine and freshwater units):; Cryosphere; Aquaculture areas; Inland surface waters and water bodies/ freshwater; Shelf ecosystems (neritic and intertidal/ littoral zone); Open ocean pelagic systems (euphotic zone); Deep-Sea; Coastal areas intensively used for multiple purposes by humans.; These IPBES terrestrial and aquatic units of analysis serve as a framework for comparison within and across assessments and represent a pragmatic solution, which may evolve as the work of IPBES develops. The IPBES terrestrial and aquatic units of analysis serve the purposes of IPBES, and are not intended to be prescriptive for other purposes.

Global assessment (1st work programme), Asia-Pacific assessment
units of analysis

Units of analysis result from subdividing the Earth's surface into units solely for the purposes of analysis. The terrestrial and aquatic units of analysis serve as a framework for comparison within and across IPBES assessments and represent a pragmatic solution. The terrestrial and aquatic units of analysis used by IPBES are not intended to be prescriptive for purposes other than those of IPBES assessments. They are likely to evolve as the work of IPBES develops.

Europe and Central Asia assessment
units of analysis

The IPBES Units of Analysis result from subdividing the Earth's surface into units solely for the purposes of analysis. The following have been identified: IPBES units of analysis (terrestrial): Tropical and subtropical dry and humid forests, Temperate and boreal forests and woodlands, Mediterranean forests, woodlands and scrub, Tundra and High Mountain habitats, Tropical and subtropical savannas and grasslands, Temperate Grasslands, Deserts and xeric shrublands, Wetlands - peatlands, mires, bogs, Urban/Semi-urban, Cultivated areas (incl. cropping, intensive livestock farming etc.).; IPBES units of analysis (aquatic, including both marine and freshwater units): Cryosphere, Aquaculture areas, Inland surface waters and water bodies/ freshwater, Shelf ecosystems (neritic and intertidal/ littoral zone), Open ocean pelagic systems (euphotic zone), Deep-Sea, Coastal areas intensively used for multiple purposes by humans. These IPBES terrestrial and aquatic units of analysis serve as a framework for comparison within and across assessments and represent a pragmatic solution, which may evolve as the work of IPBES develops. The IPBES terrestrial and aquatic units of analysis serve the purposes of IPBES, and are not intended to be prescriptive for other purposes.

Africa assessment
units of analysis

The IPBES Units of Analysis result from subdividing the Earth?s surface into units solely for the purposes of analysis. The following have been identified as IPBES units of analysis globally:Terrestrial:Tropical and subtropical dry and humid forestsTem.

Global assessment (1st work programme)
unpredictability

Something difficult or impossible to foretell or foresee.

Scenarios and models assessment
unresolved (certainty term (q.v.))

Multiple independent studies exist but conclusions do not agree.

Pollination assessment
upanishad

Each of a series of Hindu sacred treatises written in Sanskrit c.800-200 BC, expounding the Vedas in predominantly mystical and monistic terms.

Asia-Pacific assessment
upscaling

The process of scaling information from local, fine-grained resolution to global, coarse-grained resolution.

Land degradation and restoration assessment, Scenarios and models assessment, Global assessment (1st work programme), Asia-Pacific assessment
upwelling

A process in which deep, cold water rises toward the surface replacing warmer water pushed away by winds. Water that rises to the surface as a result of upwelling is typically colder and rich in nutrients, which “fertilize” surface waters, meaning that these surface waters often have high biological productivity.

Sustainable use assessment, Global assessment (1st work programme)
urban

adj. Pertaining to the built-up, human- inhabited environment (cities, towns, villages, etc.).

Pollination assessment
urban ecosystem

Any ecological system located within a city or other densely settled area or, in a broader sense, the greater ecological system that makes up an entire metropolitan area (Pickett, 2018).

Global assessment (1st work programme)
urban heat island effect

The term heat island describes built up areas that are hotter than nearby rural areas.

Land degradation and restoration assessment
urban metabolism

A method to evaluate the flows of energy and materials within an urban system, which can provide insights into the system's sustainability and the severity of urban problems such as excessive social, community, and household metabolism at scales ranging from global to local.

Global assessment (1st work programme)
urbanization

The increase in the proportion of a population living in urban areas; the process by which a large number of people becomes permanently concentrated in relatively small areas, forming cities.

Sustainable use assessment
urbanization

Increase in the proportion of a population living in urban areas; process by which a large number of people becomes permanently concentrated in relatively small areas, forming cities.

Americas assessment
urbanization

The process by which villages, towns, cities and other built-up areas grow or by which societies become more urban.

Global assessment (1st work programme), Pollination assessment
use of wild species

The wild species uses are defined through the practices of fishing, gathering, terrestrial animal harvesting, logging, and non-extractive practices. For the purposes of this assessment, the use of wild species have been divided into different categories, which are not mutually exclusive: ceremony and ritual expression, decorative and aesthetic, energy, food and feed, learning and education, materials and construction, medicine and hygiene, recreation and other: companionship.

Sustainable use assessment
users

Stakeholders who use the products of an assessment, such as decision-makers.

Scenarios and models assessment
usufruct right

A legal right accorded to a person or party that confers the temporary right to use and derive income or benefit from someone else’s property.

Asia-Pacific assessment
zoonotic disease

Zoonotic disease or zoonoses are directly transmitted from animals to humans via various routes of transmission (e.g. air - influenza; bites and saliva - rabies).

Asia-Pacific assessment, Sustainable use assessment, Global assessment (1st work programme), Africa assessment
zoonotic disease

Are directly transmitted from animals to humans via various routes of transmission (e.g. air - influenza; bites and saliva - rabies).

Americas assessment