carbon dioxide
Let an agent explain carbon dioxide and its properties, relay its roles in the carbon cycle, atmosphere and climate from scientific sources with attribution, describe industrial uses and hazards, and distinguish carbon dioxide from carbon monoxide, carbonic acid and carbonates.
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Understand What carbon dioxide is.
Properties
Properties and forms.
Properties
Properties.
- What are the properties of carbon dioxide, and what are dry ice, supercritical CO2 and amorphous carbonia? definition
- Is the question about carbon dioxide, carbon monoxide, carbonic acid or carbonates? boundary
Cycle
Carbon cycle.
Cycle
Cycle.
- How does carbon dioxide move through respiration, photosynthesis, oceans and rocks? definition
- Which entry fits carbon cycle? action
Climate Atmosphere and climate.
Greenhouse
Greenhouse effect.
Greenhouse
Greenhouse.
- How does carbon dioxide warm the planet, and what do IPCC assessments conclude? provenance
- Which references are standard? provenance
Trends
Trends and policy.
Trends
Trends.
- How have concentrations changed, and what policies address emissions, with positions attributed? provenance
- Is the presentation evidence-based and neutral on policy? boundary
Use Uses and hazards.
Uses
Uses.
Uses
Uses.
- How is carbon dioxide used in beverages, fire suppression, refrigeration, supercritical extraction and enhanced oil recovery? provenance
- Which sources are cited? provenance
Hazards
Hazards.
Hazards
Hazards.
- What are the asphyxiation and other hazards of carbon dioxide, and how are they managed? provenance
- Which entry fits carbon dioxide poisoning? action
Context Capture and history.
Capture
Capture and removal.
Capture
Capture.
- How do carbon capture, storage and removal technologies work, and what debates surround them, with positions attributed? provenance
- Which entry fits carbon capture and storage? action
History
History.
History
History.
- How was carbon dioxide discovered by van Helmont and Black, and how was its climate role established? provenance
- Which entry fits the history of climate science? action
Classifiers Filled
- Family
- Thing Registry
- Category
- Physical world and living systems
- Entry kind
- thing
- Plane
- PHY
- Domain
- PHY.MAT
- Other names and narrower kinds
- supercritical carbon dioxide, Amorphous carbonia, carbon dioxide in the atmosphere of Earth, liquid carbon dioxide, Carbon-13C dioxide, Methane(¹⁷O₂)dione, (¹⁴C)Methanedione
What it is Filled
A chemical compound of one carbon and two oxygen atoms, a colourless gas at ambient conditions that is a trace but critical component of Earth s atmosphere, produced by respiration, combustion and volcanism and consumed by photosynthesis, existing also as liquid and solid dry ice, as supercritical carbon dioxide used as a solvent, and as exotic forms such as amorphous carbonia, with isotopically labelled forms such as carbon-13 dioxide used in research; its rising atmospheric concentration from fossil fuel burning is the main driver of climate change.
Why it exists Filled
Let an agent explain carbon dioxide and its properties, relay its roles in the carbon cycle, atmosphere and climate from scientific sources with attribution, describe industrial uses and hazards, and distinguish carbon dioxide from carbon monoxide, carbonic acid and carbonates.
Distinguishing features Filled
- Greenhouse gas
- Carbon cycle hub
- Sublimes as dry ice
- Supercritical solvent
What robots and AI may and may not do Filled
Must not
- Encourage entering spaces where carbon dioxide may have displaced air.
- Confuse carbon dioxide with carbon monoxide in safety information.
- Spread climate misinformation or present settled findings as in doubt.
- Present uncertain projections as precise.
Only with a human decision
- Entry into confined spaces such as fermentation tanks or holds.
- Changing gas systems in breweries, cold stores or fire suppression.
May
- Describe carbon dioxide, its properties and role in climate from attributed scientific sources.
- Report measured concentrations with source and date.
- Warn that carbon dioxide can accumulate in cellars, tanks and confined spaces.
Moral aspects Filled
- Rising carbon dioxide drives climate change with harms that fall unequally.
- Asphyxiation incidents kill workers and rescuers.
Who is affected
- Workers in confined spaces
- Future generations
- Communities vulnerable to climate change
Owners Filled
Steward
The public: held in common as part of the atmosphere; emitters answer for their emissions.
Master systems
- National greenhouse gas inventories
- Emissions trading registries
Links to other meta-models Filled
parent
- Q1366137 - registry parent class
- Q1778613 - registry parent class
related
- oxocarbon - in registry terms
- acidic oxide - in registry terms
- climate change - as the main greenhouse gas
- photosynthesis - in plants
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.carbon-dioxide
- Wikidata: Q1997 (https://www.wikidata.org/wiki/Q1997)
- CAS: 124-38-9 carbon dioxide
- E number: E290 food additive
- ChEBI: CHEBI:16526 carbon dioxide
Direct properties required Filled
- atmospheric concentration: about 420 ppm - mid-2020s, rising
- pre-industrial concentration: about 280 ppm
- sublimation point: -78.5 C - at 1 atm
- critical point: 31.0 C and 73.8 bar note
Recognition required Filled
- Carbon dioxide gas, liquid, solid and supercritical
- Atmospheric CO2, dry ice, supercritical CO2, amorphous carbonia, carbon-13 dioxide
- Carbon monoxide is toxic CO; carbonic acid is the dissolved form; carbonates are salts
- An invisible gas; solid as white dry ice.
Capabilities and actions required Filled
- explain properties and forms
- relay atmospheric and climate roles
- describe uses and hazards
- distinguish related compounds
Hazards and failure modes required Filled
- Asphyxiation in confined spaces
- Confusing with carbon monoxide
- Climate misinformation, to be countered with attributed science
Standards and interfaces required Filled
- Climate agreements such as the Paris Agreement and emissions trading rules
- Occupational exposure limits
- Food and beverage gas standards
- Carbon capture and storage regulations
Context of use required Filled
- Industrial uses; a natural atmospheric gas.
- atmospheric carbon dioxide
- liquid and solid carbon dioxide including dry ice
- supercritical carbon dioxide
- exotic phases such as amorphous carbonia
- isotopically labelled carbon dioxide such as carbon-13 and oxygen-17 forms
- dissolved carbon dioxide and carbonic acid
Sources Filled
- Wikidata item Q1997: carbon dioxide - identity and sense of the item
- Wikipedia: Carbon dioxide - general description of the item
Open questions
- Should atmospheric carbon dioxide and dry ice be separate primary entries?
- How should climate and chemistry sources be linked?
- The registry entry has merged aliases naming phases and labelled forms; should they be split off?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q1997/spec.json