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Biodiversity: understanding nature to preserve it better

Biodiversity credits and certificates: what’s the difference?

with Alain Karsenty, Economist and Researcher at Centre de coopération internationale en recherche agronomique pour le développement (Cirad)
On September 2nd, 2026 |
4 min reading time
Alain Karsenty_VF
Alain Karsenty
Economist and Researcher at Centre de coopération internationale en recherche agronomique pour le développement (Cirad)
Key takeaways
  • Biodiversity credits enable environmental damage to be offset, whereas certificates are a financing instrument that attest to a positive impact on nature.
  • Some organisations, such as the IAPB, use the terms ‘credit’ and ‘certificate’ interchangeably on the assumption that credits could be used for both offsetting and contributing.
  • Yet offsetting is governed by very strict rules as opposed to certificates. Accepting their versatility risks weakening the regulatory framework governing the constraints of offsetting.
  • Hence, for both tools there is a risk of greenwashing on the sides of supply and demand.

Since the COP16 on biodiversity in 2024, the concept of ‘biodiversity credits’ has emerged on the international stage. What exactly are they?

Alain Karsenty. Biod­iversity cred­its enable envir­on­ment­al dam­age to be off­set. The sys­tem does not, in essence, alter the prin­ciple of reg­u­lat­ory off­set­ting that already exists in many coun­tries, recently includ­ing France. An infra­struc­ture developer must fol­low the ‘avoid, reduce, off­set’ sequence, and there­fore coun­ter­bal­ance any dam­age to nature that could not be avoided. This off­set­ting must take place near the affected areas and with­in sim­il­ar ecosystems.

Where­as, under tra­di­tion­al com­pens­a­tion, the pro­ject developer seeks a site them­selves to meet their oblig­a­tions, biod­iversity cred­its offer sup­ply-side com­pens­a­tion. In oth­er words, a third party car­ries out con­ser­va­tion or res­tor­a­tion work before eco­lo­gic­al dam­age occurs and then sells the cred­its to those who need them. These parties are required by reg­u­la­tion to pur­chase cred­its cor­res­pond­ing to the hab­it­ats affected.

This sys­tem has advant­ages. Firstly, it ensures that com­pens­a­tion takes place, as it is car­ried out in advance. It also enables the devel­op­ment of more coher­ent con­ser­va­tion frame­works by cre­at­ing biod­iversity cor­ridors, rather than estab­lish­ing con­ser­va­tion or ren­at­ur­a­tion areas solely based on land avail­ab­il­ity. France is devel­op­ing nat­ur­al sites for com­pens­a­tion, res­tor­a­tion and ren­at­ur­a­tion (SNCRR) based on this approach.

How does this differ from biodiversity “certificates”?

Cer­ti­fic­ates are a fin­an­cial instru­ment like any oth­er. They attest to a pos­it­ive impact on nature. A com­pany can pur­chase this tool and high­light it in its report­ing or as part of its CSR policy. As com­pens­a­tion is no longer an issue, a loc­al con­nec­tion is no longer neces­sary. For example, a Japan­ese bank could pur­chase cer­ti­fic­ates to fund the cre­ation of a new pro­tec­ted area in Mad­a­gas­car. The main prob­lem that can arise is that of gre­en­wash­ing or double count­ing: a com­pany may pur­chase a cer­ti­fic­ate, pub­li­cise its pos­it­ive impact, and then resell it to anoth­er company.

Nev­er­the­less, some stake­hold­ers use the terms “cred­it” and ‘cer­ti­fic­ate’ inter­change­ably. This is the case with the IAPB, the Inter­na­tion­al Advis­ory Pan­el on Biod­iversity Cred­its, which uses the term ‘cred­it’ in both instances, on the basis that cred­its could serve both as off­sets and as contributions.

Does this mean that certificates could ultimately be used for offsetting?

Yes, in the­ory. But in my view, we need to keep these two mech­an­isms clearly sep­ar­ated. Off­set­ting is gov­erned by very strict rules of equi­val­ence and prox­im­ity, which is not the case with cer­ti­fic­ates. Accept­ing the ver­sat­il­ity of these tools risks weak­en­ing the reg­u­lat­ory frame­work gov­ern­ing off­set­ting require­ments, where­as we should instead be tight­en­ing them.

On the oth­er hand, we can envis­age ways of link­ing the two. Once everything that could be done in terms of loc­al off­set­ting has been done but oblig­a­tions remain, it should then be pos­sible to sup­ple­ment these by pur­chas­ing cer­ti­fic­ates. Off­sets must be provided ‘in kind’ and close to the affected areas, but it is not uncom­mon for oper­at­ors to be unable to find suf­fi­cient land to restore or equi­val­ent hab­it­ats to con­serve in the vicin­ity. Many reg­u­la­tions out­side France there­fore allow oper­at­ors to ful­fil their com­pens­a­tion oblig­a­tions by con­trib­ut­ing money to spe­cial­ised funds or pro­tec­ted areas. Extend­ing this flex­ib­il­ity to the pur­chase of cer­ti­fic­ates cer­ti­fied by pub­lic author­it­ies would help to stim­u­late demand for these vol­un­tary instruments.

Are such mechanisms currently being developed at a European level, like the carbon market?

The European Uni­on is cur­rently work­ing on a sys­tem of nature cer­ti­fic­ates, inten­ded to be sup­ple­men­ted by nature cred­its. Nature cer­ti­fic­ates would be gen­er­ated from prac­tices deemed to be bene­fi­cial to an eco­sys­tem, whilst cred­its would be issued based on an index of the health of the eco­sys­tem in question.

The prac­tice-based cer­ti­fic­ate approach is, for example, cham­pioned by the Organ­isa­tion for Biod­iversity Cer­ti­fic­ates (OBC) in France. These cer­ti­fic­ates would spe­cific­ally fund the cost of actions under­taken, such as plant­ing hedgerows or recruit­ing eco-guards to com­bat poach­ing. How­ever, there is no con­sensus on this approach. Some believe that only res­ults meas­ured using a biod­iversity ‘met­ric’ (num­ber of spe­cies, improve­ment in water qual­ity, etc.) should be taken into account. But this poses cer­tain prob­lems. Firstly, because res­ults are some­times only meas­ur­able years after a prac­tice has been imple­men­ted. Yet these actions come at a cost. Cer­ti­fic­ates would help fund the adop­tion of new prac­tices or the con­tinu­ation of good practices.

Fur­ther­more, cli­mat­ic uncer­tain­ties and bad luck must be taken into account. A pro­ject may have put all the right prac­tices in place, but be affected by extern­al events (fire, flood­ing, dis­eases, etc.) which can undo all the efforts – and thus under­mine its abil­ity to secure fund­ing.  The ori­gin­al­ity of the European pro­ject lies in com­bin­ing these two dimen­sions, even though, at this stage, rep­res­ent­at­ives of the European Com­mis­sion envis­age that only cred­its will be trad­able units. Con­sulta­tions are expec­ted to con­tin­ue for at least anoth­er year before this European mar­ket is launched.

You were talking about the risks of greenwashing. What are they?

Gre­en­wash­ingcan occur on the sup­ply side: that is, through the sale of bogus biod­iversity cred­its or cer­ti­fic­ates, which do not make much of a dif­fer­ence on the ground. We won’t be able to avoid this. In par­tic­u­lar, for cred­its derived from con­ser­va­tion meas­ures, it will be dif­fi­cult to determ­ine wheth­er, without the sale of these cred­its or cer­ti­fic­ates, a landown­er would actu­ally have car­ried out eco­nom­ic activ­it­ies that des­troy nat­ur­al hab­it­ats. When it comes to eco­sys­tem res­tor­a­tion, there will always be a risk of excess­ive issu­ance of cred­its or cer­ti­fic­ates rel­at­ive to the actu­al cost of the operations. 

But there is also, of course, the issue of gre­en­washin­gon the part of buy­ers. What hap­pens if min­ing or oil com­pan­ies want to buy biod­iversity cer­ti­fic­ates to pub­li­cise the fact that they, too, have a pos­it­ive impact on nature? This is a ques­tion that will inev­it­ably arise. Pro­ject ini­ti­at­ors (loc­al author­it­ies, farm­ers, organ­isa­tions, etc.) could cer­tainly include exclu­sion clauses.

The aim is also to avoid rep­lic­at­ing the prob­lems iden­ti­fied in the car­bon mar­ket. For example, it is import­ant that it is the people con­cerned who determ­ine the actions to be taken in their area, rather than an extern­al party com­ing in and telling them: ‘We want to run a biod­iversity pro­ject; we’ll pay you, but in exchange, you must adopt the prac­tices we pre­scribe.’ The object­ives must be the res­ult of col­lect­ive decisions.

Interview by Pauline Fricot

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