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IB Biology Topic D4.3 Climate Change (SL/HL) covers syllabus content as part of Topic D4: Ecosystems under Theme D: Continuity and Change. Use these Notes, Questionbank, Videos, Flashcards, and Lessons to review the topic, practise exam questions, and move between notes, videos, flashcards, and lessons where available.
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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)