CO₂ Capture vs CO₂ Conversion -Capturing CO₂ from emissions vs chemically transforming CO₂ into value-added products. 

Solid Sorbents vs Liquid Absorbents for CO₂ Capture- Comparison of material types used for capturing CO₂ — from amine-based liquids to solid functional materials like MOFs and zeolites. 

Direct Air Capture (DAC) vs Point-Source Capture- Extracting CO₂ from ambient air vs capturing it directly from concentrated industrial sources like power plants. 

Photocatalysis vs Thermocatalysis vs Electrocatalysis for CO₂ Conversion- Utilizing sunlight, heat, or electricity to drive catalytic transformation of CO₂ into fuels and chemicals. 

CO₂ Storage vs CO₂ Conversion- Permanently storing CO₂ in geological formations vs utilizing it as a feedstock to create useful products. 

Carbon Mineralization vs Catalytic CO₂ Conversion - Converting CO₂ into stable carbonates through mineralization vs transforming it into fuels and chemicals using catalysts.