Putting a Price on Carbon: From Carbon Costs to Climate Impact

Using Carbon Pricing in Public Decision-Making. Part one in a two-part webinarseries. 

September 8th, 2026

How can carbon pricing help public authorities make more informed choices?

In the first webinar of our series on carbon pricing, Michiel van der Hagen (GMR) explained how putting a price on CO₂ emissions can make climate costs visible in public decision-making.

The session explored the differences between a carbon price, shadow price and the social cost of carbon, and showed why there is no single ‘correct’ carbon price. Which price works best depends on how and where it is used.

We also looked at how governments and public authorities already use carbon pricing, for example in procurement, projects and investment decisions.

This webinar has been organised by Interreg DeCarb-Pro in collaberation with Klimaatverbond Nederland 

This webinar is part one in a two-part series. Watch the second webinar here >>

Presentations and downloadables

Michiel van der Hagen (GMR)

From Carbon Costs to Climate Impact

Michiel van der Hagen (Groene Metropoolregio Arnhem-Nijmegen) showed how carbon pricing can help include the costs of CO₂ emissions in public decision-making. What seems like the cheapest option today may look different when the wider costs of emissions are taken into account.

Using the example of repaving a schoolyard, he showed how this works in practice: do you buy new paving stones or reuse the ones already there? Adding the costs of CO₂ provides a more complete picture of both options and helps public authorities make better-informed decisions

Further reading

Handbook on Environmental Value Factors (German Environment Agency – UBA)

Available for download in both English and German. The report highlights an important takeaway from the webinar: there is no single “correct” carbon price, as different assumptions can lead to different outcomes.

Further reading

How Dutch local governments integrate CO₂ costs into policy and implementation

Read practical examples and lessons from Dutch municipalities and regional authorities already using CO₂ costs in their decision-making.

This webinar is part of a two part series.

For questions about this webinarseries, contact Liset Meddens, project assistent carbon pricing:
Liset Meddens
Liset Meddens