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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)
kelp

A large brown seaweed that typically has a long, tough stalk with a broad frond divided into strip.

Asia-Pacific assessment
key biodiversity area

Sites contributing significantly to the global persistence of biodiversity. They represent the most important sites for biodiversity worldwide, and are identified nationally using globally standardised criteria and thresholds.

Americas assessment, Europe and Central Asia assessment, Africa assessment, Global assessment (1st work programme), Asia-Pacific assessment
key biodiversity area

Sites contributing significantly to the global persistence of biodiversity. They represent the most important sites for biodiversity conservation worldwide, and are identified nationally using globally standardized criteria and thresholds.

key players

People and organizations who both can influence and become affected by decisions - that is, in certain contexts, they serve as influencers, while at the same time are involved in actual decision making.

Values assessment
keystone species

A species whose impact on the community or ecosystem is disproportionately large relative to its abundance. Effects can be produced by consumption (trophic interactions), competition, mutualism, dispersal, pollination, disease, or habitat modification (non-trophic interactions).

Sustainable use assessment
keystone species

A species whose impact on the community or ecosystem is disproportionately large relative to its abundance. Effects can be produced by consumption (trophic interactions), competition, mutualism, dispersal, pollination, disease, or habitat modification (no.

keystone species

Species that maintain the organization and diversity of their ecological communities and are thus exceptional, relative to the rest of the community, in their importance. Species that, despite low biomass, exert strong effects on the structure of the communities they inhabit.

Asia-Pacific assessment
kinship-centric principle (non-humans)

animals, plants and spirits, and such approach forms part of an indigenous cultural identity. Maintaining reciprocal and healthy relationships through a continuum with animals, plants and the lands where they reside involve the giving and taking of resources in appropriate ways, at appropriate times. In some cases, animals and plants are seen and treated as equals to humans and shape and reshape human relations with nature. Often, the values embedded in these relationships drive human behaviour and are elicited through certain valuation methods. Appreciation (no disregard) for spiritual entities (e.g. sacred mountains, rivers, among others) residing on ancestral lands, can be an example of a Kinship-central approach (focused on non-humans).

Values assessment
kinship-centric principle (other humans)

Actions of mutual support between humans such as sharing, gender equity, social equity, honesty, humility, modesty. Some of these elements can be revealed as relevant through valuation methods and approaches, as well as by practices associated with them.

Values assessment
knowledge system

Indigenous and local knowledge systems are understood to be dynamic bodies of integrated, holistic, social and ecological understandings, know-hows, practices and beliefs pertaining to the relationship of living beings, including people, with one another and with their environment. Indigenous and local knowledge is grounded in territory, is highly diverse and is continuously evolving through the interaction of experiences, skills, innovations and different types of wisdom expressed in multiple ways (written, oral, visual, tacit, practical and scientific). Such knowledge can provide information, methods, theory and practice for sustainable ecosystem management. Indigenous and local knowledge systems have been, and continue to be, empirically tested, applied, contested and validated through different means in different contexts. Western Academic knowledge systems relate to often explicit knowledge that has been derived from applying formal methods in academic or technical institutions.

Values assessment
knowledge system

A body of propositions that are adhered to, whether formally or informally, and are routinely used to claim truth.

Scenarios and models assessment
knowledge system

A body of propositions that are adhered to, whether formally or informally, and are routinely used to claim truth. They are organized structures and dynamic processes (a) generating and representing content, components, classes, or types of knowledge, that are (b) domain-specific or characterized by domain-relevant features as defined by the user or consumer, (c) reinforced by a set of logical relationships that connect the content of knowledge to its value (utility), (d) enhanced by a set of iterative processes that enable the evolution, revision, adaptation, and advances, and (e) subject to criteria of relevance, reliability, and quality.

Europe and Central Asia assessment, Americas assessment, Sustainable use assessment, Land degradation and restoration assessment, Asia-Pacific assessment
knowledge system

Organized structures and dynamic processes (a) generating and representing content, components, classes, or types of knowledge, that are (b) domain-specific or characterized by domain-relevant features as defined by the user or consumer, (c) reinforced by a set of logical relationships that connect the content of knowledge to its value (utility), (d) enhanced by a set of iterative processes that enable the evolution, revision, adaptation, and advances, and (e) subject to criteria of relevance, reliability, and quality.

Pollination assessment
knowledge system

A body of propositions that are adhered to, whether formally or informally, and are routinely used to claim truth. They are organised structures and dynamic processes: generating and representing content, components, classes, or types of knowledge, that are, domain-specific or characterised by domain-relevant features as defined by the user or consumer,, reinforced by a set of logical relationships that connect the content of knowledge to its value (utility),, enhanced by a set of iterative processes that enable the evolution, revision, adaptation, and advances, and,, subject to criteria of relevance, reliability, and quality.

Africa assessment
kyoto protocol

An international agreement linked to the United Nations Framework Convention on Climate Change, which commits its Parties by setting internationally binding emission reduction targets.

Asia-Pacific assessment
validation (of models)

Typically refers to checking model outputs for consistency with observations. However, since models cannot be validated in the formal sense of the term (i.e. proven to be true), some scientists prefer to use the words benchmarking or evaluation.

Scenarios and models assessment
validation (of models)

See models.

valuation

It is the process of documenting the existence of values, identifying when and where and by whom they are expressed, that in turn allows characterizing values. Valuation of nature can inform decision-making about numerous human-nature relationships; it can support decision processes about alternative projects or policies, inform the design of policy tools and instruments, for conservation and sustainable management of nature or to improve justice. Outside the formal policy space, valuation is also undertaken by academia, the private sector, non-governmental organizations and by indigenous and local communities (IPLC). IPLC undertake valuation not only to make decisions about nature, but also to assess their relationships with nature, to plan collectively, resolve conflicts, defend their territories, and as a means for strengthening and reciprocating their connections with nature.

Values assessment
valuation approach

Valuation approaches are higher level assumptions, ideas or beliefs that underpin methods. They translate key decisions on how a method is to be applied or how the information generated by methods is to be interpreted. For each approach there are often multiple accepted methods that adhere to the basic assumptions and ideas of the given approach. Valuation approaches can also be manifested as “traditions” or widely accepted and expected protocols for undertaking valuation. Valuation traditions are heavily informed and influenced by the cultural context and/or epistemological worldviews.

Values assessment
valuation method

Are the specific techniques and accepted formal procedures that are applied to gather and analyse information from nature and society in order to and understand or make explicit the state of nature and its importance to people a) quantity, quality and status of nature including its spatial and temporal variations; b) the relevance or importance of nature to people and societies; and c) the nature of human-nature and nature-human relations in terms of how people and societies embed and live out their values of nature (as actions, principles, worldviews or philosophies).

Values assessment
value (as importance)

A value can be the importance of something for itself or for others, now or in the future, close by or at a distance. This importance can be considered in three broad classes. 1. The importance that something has subjectively, and may be based on experience. 2. The importance that something has in meeting objective needs. 3. The intrinsic value of something.

Americas assessment, Asia-Pacific assessment, Europe and Central Asia assessment, Land degradation and restoration assessment
value (as importance)

A value can be the importance of something for itself or for others, now or in the future, close by or at a distance. This importance can be considered in three broad classes: The importance that something has subjectively, and may be based on experience. The importance that something has in meeting objective needs. The intrinsic value of something.

Africa assessment
value (as measure)

A value can be a measure. In the biophysical sciences, any quantified measure can be seen as a value.

Americas assessment, Europe and Central Asia assessment, Land degradation and restoration assessment, Asia-Pacific assessment, Africa assessment
value (as preference)

A value can be the preference someone has for something or for a particular state of the world. Preference involves the act of making comparisons, either explicitly or implicitly. Preference refers to the importance attributed to one entity relative to another one.

Africa assessment, Land degradation and restoration assessment, Asia-Pacific assessment, Americas assessment, Europe and Central Asia assessment
value (as principle)

A value can be a principle or core belief underpinning rules and moral judgments. Values as principles vary from one culture to another and also between individuals and groups.

Africa assessment, Land degradation and restoration assessment, Europe and Central Asia assessment, Asia-Pacific assessment, Americas assessment
value chains (that link production systems, markets and consumers)

a contact network, which provides opportunities for the transmission of contagious diseases within and between sectors. It follows that these chains (networks) can be understood and taken into account in planning risk management strategies for disease prevention and control” especially in relation with “risky parts of the value chain”

Invasive alien species assessment
value change

Value change refers to the modification of people’s values or of the prioritization of their values in particular contexts. Value change processes occur at different social scales, from large-scale cultural shifts (e.g. intergenerational shifts due to changing demography or changes to shared values) to small-scale personal shifts (e.g. values formation and change over an individual’s lifetime). Individual, social and social-ecological experiences and interactions influence value change; examples include formal and informal education, social practices, group conformation processes, personal experiences and shocks, and social-ecological events (e.g. natural disasters, pandemics).

Values assessment
value expression

Values can be expressed explicitly through language and implicitly through actions like choices, decisions made, everyday practices or rituals. Valuation methods are used to undertake explicit valuation. Methods and approaches to integrate and bridge values, provide knowledge about nature’s values as input to decision-making.

Values assessment
value formation

'Value formation' refers to how values develop in the first place. It can occur in individual-focused processes, trough socially-oriented processes or in social-ecological processes that do not separate humans and nature.

Values assessment
value indicator

Indicators of value are quantitative and qualitative measures of the importance of nature to people. Indicators used to express the value of nature can be biophysical, economic and socio-cultural.

Values assessment
value monism

Derives from a utilitarian perspective on human-nature relationships which privileges some values of nature over others (usually monetary values).

Values assessment
value pluralism

Value pluralism is the idea that there are several values which may be equally correct and fundamental, and yet in conflict with each other. It is the opposite of value monism. More broadly speaking, value pluralism may also refer to different people having different worldviews and hence different values. In addition, these plural values may be incommensurable (i.e. they do not share a single unit of measurement, a single metric, and that there is no objective way of comparing them or weighting them against each other).

Values assessment
value system

Sets of values according to which people, societies and organizations regulate their behaviour.

Scenarios and models assessment