The same substances — in the game

How a run works

Forty seconds of training, a round of six capsules at twenty-five seconds each, then a quiz. Changing the category resets progress — that is the game’s own rule, not a fault.

The numbers in the game are the same ones as in the composition tables here.

Four categories

• Tobacco: heating versus burning
• Fuel: how the fuel type changes emissions
• Construction: how standards change the footprint
• Cars: how the drivetrain changes emissions

Your results

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