Learn about the climate wedges

Climate wedges are a simple, transparent way to build and debate decarbonisation pathways. Many climate models search for a single plan optimised for cost. Here, you decide what plan to build, and compare different choices on a level playing field.

Wedge are a standard unit of climate action. Think of them as building blocks, all the same size, which you stack together to bend the emissions curve down.

There are 36 strategies which can each deliver one or more wedges of mitigation. You can pick and choose between them, building a portfolio that you believe is most realistic, safest, cheapest, or whatever criteria matter to you.

To use the framework, start by choosing a warming or emissions goal. That tells you how many wedges you need. Then pick a portfolio of strategies to meet that target.

Trillions of pathways are possible, but you should think about trade-offs, constraints and synergies, and judge what combinations are plausible or acceptable.

Flexibility is part of the point. Baselines and targets are contested, so this tool helps you explore implications rather than predict the future.

Use the four links below to go deeper on wedge basics, warming, strategy details, and trade-offs.