✅ Checkpoint: Everyday Emissions

By Better Wise

Quiz

  1. Which food sits at the top of the per-kilogram emissions ranking, at roughly 60 kg CO2e per kg?
    • Chicken
    • Cheese
    • Rice
    • Beef
  2. A family bolognese uses 500 g of beef mince (about 30 kg CO2e). They swap half the mince for lentils. Roughly what is the new footprint of the meat part?
    • About 15 kg CO2e
    • About 3 kg CO2e
    • About 30 kg CO2e, because lentils add emissions
    • About 25 kg CO2e
  3. Which home measure has an immediate payback because it costs nothing upfront?
    • Turning the thermostat down 1°C
    • Loft insulation top-up
    • Replacing ten halogen bulbs with LEDs
    • Installing a low-flow shower head
  4. How do per-person emissions of a petrol car change when four people ride instead of the driver alone?
    • They fall by about 10%, to roughly 160 g per passenger-km
    • They rise, because the extra weight increases fuel use
    • They stay the same, because the car burns the same fuel
    • They fall by about 75%, to roughly 40 to 50 g CO2e per passenger-km
  5. For goods such as a smartphone or laptop, where does most of the lifetime footprint come from?
    • Operational emissions from charging it during use
    • Shipping it to the shop
    • Disposing of it at end of life
    • Embodied emissions from manufacturing, often 80% or more
  6. About one ____ of all food produced globally is never eaten, and food rotting in landfill releases methane.
  7. A solo petrol car emits roughly 170 to ____ grams of CO2e per passenger-kilometre.
  8. Payback time is calculated as upfront cost divided by the annual ____.
  9. Pick one meal you eat regularly and estimate how you could cut its food footprint. Describe the swap, the rough CO2e saved per serving, and whether it saves money too.
  10. Choose one trip you make regularly and apply the avoid, shift, improve hierarchy to it. Explain which step you can take now and estimate the annual CO2e change.

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