2 ready-made review sets for this topic, 24 questions in all, marked SL or HL, to play as a class game on the projector. Free to host, and students join with a code.
Intensification of the natural greenhouse effect by human emissions of CO₂, CH₄ and N₂O, trapping extra heat in the atmosphere?
Topic 6 starts with the atmosphere and the natural greenhouse effect, then climate change: its causes and impacts, with feedbacks such as melting ice lowering albedo, and what can be done about it, through mitigation, adaptation and international agreements under the UNFCCC. It ends with stratospheric ozone: how ozone-depleting substances break it down, and how the Montreal Protocol has put the ozone layer on course to recover. At higher level it adds Milankovitch cycles, proxy data and climate models, the IPCC and its emissions scenarios, geoengineering, the polar ozone hole, and HFCs and the Kigali Amendment.
Play this set opens the set in splycr, where you can read every question and host it for your class straight away. Hosting needs no account, and students join with the code on the board. A free account lets you copy a set and edit it.
The questions come from the Biology by Bradford flashcard bank. Each one plays as multiple choice, and the wrong options are other answers from the same set.
ESS has had a higher level course since the guide first assessed in 2026. Sets marked SL suit every ESS student, because higher level students study the standard level content too. Sets marked HL cover the additional higher level material in topics 2 to 8; Topic 1 has none, so its sets are all SL. The three HL lenses (environmental law, economics and ethics) have no sets yet.
Intensification of the natural greenhouse effect by human emissions of CO₂, CH₄ and N₂O, trapping extra heat in the atmosphere?
Answer: Enhanced greenhouse effect
The fraction of incoming solar radiation reflected by a surface (e.g. ice reflects more than ocean)?
Answer: Albedo
Strategies to manage the consequences of climate change (e.g. flood defences, drought-resistant crops)?
Answer: Adaptation
Astronomical cycles in Earth's orbital shape, axial tilt and wobble that cause long-term climate variation?
Answer: Milankovitch cycles
Testing a climate model by running it from past starting conditions to see whether it reproduces the climate that was actually observed?
Answer: Hindcasting
Chlorine-free CFC substitutes that do not deplete ozone but are potent greenhouse gases, now being phased down under the Kigali Amendment?
Answer: Hydrofluorocarbons (HFCs)
Every set plays in all eight modes. These two fit this topic best.
Topic 6 is full of near misses: greenhouse effect or enhanced greenhouse effect, mitigation or adaptation. In team Racer only one teammate sees the right option, so students have to say out loud why it is one and not the other.
A wrong answer heals the boss, which makes the classic swaps in this topic cost something, and streaks of right answers hit harder.