Expert-level climate engineering covering carbon capture and storage, direct air capture, solar geoengineering, enhanced weathering, and carbon accounting.
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Post-combustion capture: amine scrubbing removes CO2 from flue gas. Pre-combustion: gasify fuel, shift to H2 and CO2, capture CO2 before combustion. Oxyfuel combustion: burn in pure O2, concentrated CO2 in flue gas. Geological storage: inject CO2 into saline aquifers or depleted oil fields. Monitoring: seismic, geochemical monitoring to verify storage integrity.
Liquid solvent: KOH captures CO2 from air, regenerated by calcination. Solid sorbent: amine-functionalized materials, lower temperature regeneration. Energy requirement: 1.5 to 2 GJ per tonne CO2 for current systems. Cost: currently 300 to 1000 USD per tonne CO2, declining with scale.
Afforestation: plant trees on non-forested land, sequester carbon in biomass. Blue carbon: mangroves, seagrasses, saltmarshes store carbon in soils. Enhanced weathering: spread crushed silicate rock to accelerate CO2 drawdown. Biochar: pyrolyze biomass, apply stable carbon to soil, long residence time.
SAI: stratospheric aerosol injection, reflect sunlight, reduce warming. Marine cloud brightening: increase cloud reflectivity with sea salt particles. Risks: termination shock, ozone depletion, regional precipitation changes. Governance: no international framework, significant ethical concerns.
| Pitfall | Fix |
|---|---|
| Ignoring energy penalty for CCS | CCS reduces plant output by 15-25%, include in analysis |
| Treating nature-based solutions as permanent | Forests can burn or be cleared, durability risk |
| Conflating SRM with CDR | SRM does not reduce CO2, only masks warming |
| Double counting carbon credits | Ensure carbon removal is additional and not counted elsewhere |
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Expert-level abstract algebra knowledge. Use when working with groups, rings, fields, modules, Galois theory, representation theory, or algebraic structures. Also use when the user mentions 'group', 'ring', 'field', 'homomorphism', 'isomorphism', 'normal subgroup', 'quotient group', 'Sylow theorem', 'Galois theory', 'polynomial ring', 'ideal', 'module', 'vector space', or 'representation theory'.
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Expert-level acoustics knowledge. Use when working with sound waves, acoustic propagation, resonance, standing waves, Doppler effect, room acoustics, ultrasound, noise control, musical acoustics, or architectural acoustics. Also use when the user mentions 'sound wave', 'decibel', 'frequency', 'resonance', 'standing wave', 'Doppler effect', 'acoustic impedance', 'reverberation', 'ultrasound', 'noise control', 'harmonics', or 'sound intensity'.
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Expert-level aerodynamics covering subsonic and supersonic flow, lift and drag, airfoil theory, boundary layers, compressible flow, and CFD methods.
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Expert-level air quality engineering covering pollutant sources, atmospheric dispersion, air quality standards, emission controls, and air quality modeling.
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Expert-level aircraft structures covering structural design philosophy, wing and fuselage analysis, fatigue and damage tolerance, composite structures, and certification.
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Expert-level algorithms and complexity theory covering sorting, searching, graph algorithms, dynamic programming, greedy algorithms, NP-completeness, and algorithm design paradigms.
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