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D4.3.8—Carbon sequestration approaches

Carbon sequestration approaches reduce atmospheric carbon dioxide by increasing biological carbon uptake and long-term storage in biomass or soils over time.

Syllabus
First assessment 2025
Objective
D4.3.8
Level
HL

Exam analysis

Chance of appearing1%of analysed past papers
Latest appearanceNovember 2014
Most common paperPaper2
Typical marks1

Common command terms

  • Explain

Recent exam appearances

November 2014Paper2 ["HL"] · TZ03(a)(i)[ 1 ]D4.3.8—Carbon sequestration approaches
Practice this objective

Coverage 2014–2014 · Updated 16 Jul 2026

Concept essentials

  • Photosynthesis removes carbon dioxide from the atmosphere and stores carbon in organic matter.
  • Reforestation, afforestation, and peatland rewetting can increase carbon storage.
  • Deforestation decreases carbon sequestration by removing biomass and carbon-sink capacity.
ConceptIB Biology HL