Editing IPCC:AR6/Glossary (section)

== V ==

<div class="glossary-entry">
<div id="Values_and_beliefs"></div>
=== <span class="glossary-term">Values and beliefs</span> ===

<div class="glossary-working-groups">'''Working Groups:''' WGII</div>

<div class="glossary-definition">'''Definition:''' Fundamental attitudes about what is important, good, and right; strongly held principles or qualities intrinsically valuable or desirable, often enshrined in laws, traditions, and religions. Examples include human rights, subsistence, and equitable distribution of costs and benefits of climate policies (Hulme, 2009, 2018; Nakashima et al., 2012; UNFCCC, 1992; UN Universal Declaration of Human Rights, 1948).</div>
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<div class="glossary-entry">
<div id="Variable_renewable_energy"></div>
=== <span class="glossary-term">Variable renewable energy</span> ===

<div class="glossary-working-groups">'''Working Groups:''' WGIII</div>

<div class="glossary-longer-term">'''Full term:''' Variable renewable energy (VRE)</div>

<div class="glossary-definition">'''Definition:''' Renewable energy sources such as wind and solar energy whose output is determined by weather, in contrast to ‘dispatchable’ generators that adjust their output as a reaction to economic incentives. Variable renewables have also been termed intermittent, fluctuating, or non-dispatchable. (Hirth, 2013)</div>
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<div id="Vector-borne_disease"></div>
=== <span class="glossary-term">Vector-borne disease</span> ===

<div class="glossary-working-groups">'''Working Groups:''' WGII</div>

<div class="glossary-definition">'''Definition:''' Illnesses caused by parasites, viruses and bacteria that are transmitted by various vectors (e.g. mosquitoes, sandflies, triatomine bugs, blackflies, ticks, tsetse flies, mites, snails and lice)(UNEP 2018)</div>
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<div id="Ventilation"></div>
=== <span class="glossary-term">Ventilation</span> ===

<div class="glossary-working-groups">'''Working Groups:''' WGI; WGII</div>

<div class="glossary-longer-term">'''Full term:''' Ventilation (ocean)</div>

<div class="glossary-definition">'''Definition:''' The exchange of ocean properties with the atmospheric surface layer such that property concentrations are brought closer to equilibrium values with the atmosphere (AMS, 2000), and the processes that propagate these properties into the ocean interior.</div>
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<div class="glossary-entry">
<div id="Verification"></div>
=== <span class="glossary-term">Verification</span> ===

<div class="glossary-working-groups">'''Working Groups:''' WGIII</div>

<div class="glossary-definition">'''Definition:''' ‘The process of formal verification of reports, for example, the established approach to verify national communications and national inventory reports to the UNFCCC’ (UN REDD, 2009).</div>
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<div class="glossary-entry">
<div id="Vertical_land_motion"></div>
=== <span class="glossary-term">Vertical land motion</span> ===

<div class="glossary-working-groups">'''Working Groups:''' WGI</div>

<div class="glossary-longer-term">'''Full term:''' Vertical land motion (VLM)</div>

<div class="glossary-definition">'''Definition:''' The change in height of the land surface or the sea floor and can have several causes in addition to elastic deformation associated with contemporary changes in gravity, rotation and viscoelastic solid Earth deformation (GRD) and viscoelastic deformation associated with glacial isostatic adjustment (GIA). Subsidence (sinking of the land surface or sea floor) can, for instance, occur through compaction of alluvial sediments in deltaic regions, removal of fluids such as gas, oil, and water, or drainage of peatlands. Tectonic deformation of the Earth’s crust can occur as a result of earthquakes and volcanic eruptions.</div>
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<div class="glossary-entry">
<div id="Very_short-lived_halogenated_substances"></div>
=== <span class="glossary-term">Very short-lived halogenated substances</span> ===

<div class="glossary-working-groups">'''Working Groups:''' WGI</div>

<div class="glossary-longer-term">'''Full term:''' Very short-lived halogenated substances (VSLSs)</div>

<div class="glossary-definition">'''Definition:''' Very short-lived halogenated substances (VSLSs) are considered to include source gases (very short-lived halogenated substances present in the atmosphere in the form they were emitted from natural and anthropogenic sources), halogenated product gases arising from source gas degradation, and other sources of tropospheric inorganic halogens. VSLSs have tropospheric lifetimes of around 0.5 years or less.</div>
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<div class="glossary-entry">
<div id="Volatile_organic_compounds"></div>
=== <span class="glossary-term">Volatile organic compounds</span> ===

<div class="glossary-working-groups">'''Working Groups:''' WGI</div>

<div class="glossary-longer-term">'''Full term:''' Volatile organic compounds (VOCs)</div>

<div class="glossary-definition">'''Definition:''' Important class of organic chemical air pollutants that are volatile at ambient air conditions. Other terms used to represent VOCs are hydrocarbons (HCs), reactive organic gases (ROGs) and non-methane volatile organic compounds (NMVOCs). NMVOCs are major contributors – together with nitrogen oxides (NOx), and carbon monoxide (CO) – to the formation of photochemical oxidants such as ozone (O 3).</div>
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<div class="glossary-entry">
<div id="Vulnerability"></div>
=== <span class="glossary-term">Vulnerability</span> ===

<div class="glossary-working-groups">'''Working Groups:''' WGI; WGII; WGIII</div>

<div class="glossary-definition">'''Definition:''' The propensity or predisposition to be adversely affected. Vulnerability encompasses a variety of concepts and elements, including sensitivity or susceptibility to harm and lack of capacity to cope and adapt.</div>
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<div id="Vulnerability_index"></div>
=== <span class="glossary-term">Vulnerability index</span> ===

<div class="glossary-working-groups">'''Working Groups:''' WGII</div>

<div class="glossary-definition">'''Definition:''' A metric characterising the vulnerability of a system. A climate vulnerability index is typically derived by combining, with or without weighting, several indicators assumed to represent vulnerability.</div>
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<div class="glossary-letter-section">