This topic summary covers Topic Summary: Climate Change within Climate Change for GCSE Chemistry. Revise Climate Change in Atmosphere for GCSE Chemistry with 20 exam-style questions and 15 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 17 of 17 in this topic. Use this topic summary to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 17 of 17
Practice
20 questions
Recall
15 flashcards
Topic Summary: Climate Change
Evidence (TIMC)
- Temperature records: +1.1°C since 1880
- Ice cores: highest CO₂ in 800,000 years
- Melting ice: 13% Arctic loss per decade
- Changing seasons: earlier spring events
Human Causes
- Fossil fuels: 75% of CO₂ emissions
- Deforestation: 11% of CO₂ emissions
- Agriculture: methane from cattle/rice
- Industry: cement (CaCO₃ → CaO + CO₂)
Consequences (SIRF)
- Sea levels rise (23 cm since 1880)
- Ice caps melt
- Rainfall patterns change
- Flooding/extreme weather increases
Mitigation Strategies
- Renewable energy (solar, wind)
- Electric vehicles
- Reforestation
- Carbon capture and storage
- Individual actions: less driving/flying/meat