EXTENSION TOPICS, Topic B - Impact of Climate Change on Animals and Plants

Q: What does EXTENSION TOPICS, Topic B - Impact of Climate Change on Animals and Plants cover?
A: Analyse how greenhouse emissions reshape ecosystems, food security, biodiversity, and disease vectors so you can deliver data-driven answers for the H2 Biology climate change extension topic.

Status: SEAB H2 Biology (9477, first exam 2026) syllabus last checked 2025-11-29 (PDF last modified 2025-11-28). Extension Topic B scope (emissions, ecosystem impacts, disease vectors) remains unchanged; expect Paper 3/4 data handling around these themes.

Why this topic matters for future-facing biology

• Systems thinking: Questions integrate ecology, physiology, biotechnology, and socio-economics.
• Data analysis: Expect graphs on temperature trends, crop yields, carbon budgets, or dengue incidence.
• Singapore context: Local mangroves, urban heat islands, and vector control are common framing devices.

Syllabus map

• Anthropogenic greenhouse gas sources ($\ce{CO2}$, methane)
• Environmental effects (temperature rise, sea-level change, extreme weather)