Public debt is rising. So are interest rates. And yet, environmental expectations remain high. The latest EcoCharts – Public Finance report from BNP Paribas confirms a silent shift: budgetary constraints will become structural in most major economies by 2030. This observation goes beyond macroeconomics. It redefines, very concretely, how public and semi-public projects will need to be designed, prioritized, and justified.
What the report says (beyond the graphs)
Three key lessons emerge clearly:
- High interest rates neutralize deficit reduction strategies. Even during periods of growth, the interest burden absorbs a growing share of fiscal space.
- Structural spending is rigid. Health, aging, defense, transition: states no longer have quick levers without heavy political trade-offs.
- Debt stabilization is no longer automatic. It requires sustained positive primary balances, rarely achieved without a profound transformation of public policy.
In other words: public money is becoming scarce, expensive and under intense scrutiny.
The shift in the problem: from funding to decision-making
In this context, the question is no longer just how much to invest, but where, why, and with what evidence.
Environmental and planning policies are entering a new phase:
- less focused on display,
- more exposed to ex ante evaluation,
- and subject to increased requirements for traceability and results.
This shift is significant: value no longer lies in the promise, but in the demonstration.
ARKORIS's role in this new framework
It is precisely in this area that the ARKORIS group is positioned.
- ARKEMEP provides the technical engineering necessary to objectify energy and environmental choices.
- ARKENOR structures decision support: environmental project management assistance, ecological expertise, production of evidence, prioritization of options.
- IRICE acts as an independent third party when credibility, enforceability and clarity of roles become crucial.
Together, these building blocks meet the same requirement:
transforming a strong budgetary constraint into a rational, justifiable and defensible decision.
Why this is becoming strategic for project owners
When public debt increases and interest rates remain high:
- Each investment is compared,
- Every expense is questioned
- Every choice must be able to be explained, documented, and evaluated.
In this context, environmental expertise changes its status. It is no longer a mere added value. It becomes a tool for economic and political security.
Conclusion
The BNP Paribas report doesn't mention ARKORIS. But it accurately describes the world in which ARKORIS operates.
A world where:
- Public spending must be selective
- The ecological benefits must be demonstrated
- and the decision must withstand time, audits and arbitration.
The question is no longer "should we act?" The question is now: on what solid basis can we decide to act?

