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D4.3 Climate change Lessons - IB Biology

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D4.3 Climate change

IB Biology Topic D4.3: Climate Change Lessons

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Lessons for D4.3 Climate change - IB

This lesson delivers structured, step-by-step lessons that guide students through every part of the IB Biology syllabus for D4.3 Climate change. These lessons simplify complex ideas like molecular biology, evolutionary mechanisms, and homeostasis, while worked examples show how to approach IB-style questions.

Designed for both HL and SL learners, RevisionDojo lessons ensure students not only understand the theory but also know how to apply it in IB Paper exam situations.

With clear explanations, active learning checks, and a syllabus-first design, RevisionDojo makes revision less overwhelming and more effective.

D4.3.1 Anthropogenic causes of climate change

D4.3.2 Positive feedback cycles in global warming

D4.3.3 Change from net carbon accumulation to net loss in boreal forests

D4.3.4 Melting of landfast ice and sea ice as examples of polar habitat change

D4.3.5 Changes in ocean currents altering the timing and extent of nutrient upwelling

D4.3.6 Poleward and upslope range shifts of temperate species

D4.3.7 Threats to coral reefs as an example of potential ecosystem collapse

D4.3.8 Afforestation, forest regeneration and restoration of peat-forming wetlands

D4.3.9 Phenology as research into the timing of biological events (HL)

D4.3.10 Disruption to the synchrony of phenological events by climate change (HL)

D4.3.11 Increases to the number of insect life cycles within a year due to climate change (HL)

D4.3.12 Evolution as a consequence of climate change (HL)

D1.1 DNA replication

D1.2 Protein synthesis

D1.3 Mutations and gene editing

D2.1 Cell and nuclear division

D2.2 Gene expression (HL)

D2.3 Water potential

D3.1 Reproduction

D3.2 Inheritance

D3.3 Homeostasis

D4.1 Natural selection

D4.2 Sustainability and change

D4.3 Climate change