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Chapter 1 of 8

The rule

A carbon market starts with a limit. Here it is a limit per tonne of product.

Carbonado

Carbon atom, four bonds · your guide to the market

Meet our regulated entity: a cement plant that makes 1,000,000 tonnes a year. I'm going to follow it through one year of a carbon market.

Every market starts with a rule about how much carbon is allowed. There are two common ways to write it. A cap fixes the total tonnes for everyone. An intensity target fixes the tonnes allowed per tonne of product instead.

India's CCTS uses intensity targets, and so does PromETS Easy Mode. Our plant's target is 0.82 tonnes of CO₂ for every tonne of cement.

Allowed t800,000 t made656k1,000,000 t made820k1,200,000 t made984kCap: 820k t, whatever you makeIntensity: 0.82 t × what you make
Under a cap the allowed total stays flat. Under an intensity target it grows with output, but every tonne must be cleaner.

Carbonado says:

Remember this

An intensity target does not stop you growing. It makes every tonne you produce answer for its carbon.

In the game: Your year-one target is on the play screen, under "This year vs your target".

Go deeper

From the Learning Academy

World Resources Institute (WRI) · 2024

Carbon markets for cost-efficient emissions reductions in India

Carbonado:Why India is building a carbon market at all, and what it takes to design one well.

Read the report