A plain-English explainer from the Repricing Carbon series. New here? Start with What Is a Carbon Credit?
Ten years ago, buying carbon credits was a quiet task. Someone on the sustainability team picked a project, signed off, and moved on. Today that same purchase pulls in legal, brand, procurement, and finance. If you are wondering why a simple-sounding buy now needs a committee, this is the piece for you.
Why it used to be simple
For most of the market’s history, credits were cheap and low-risk to be associated with. A credit cost a few dollars a ton, and no one was going to write a news story about it. So the decision lived in one place. The sustainability team handled it, finance approved the spend, and that was the whole process. There was little reason for anyone else to care.
What changed
Two things happened at once. First, the press started paying attention, and a company tied to a credit that turned out to be weak could take a real reputational hit. Second, the rules around what you are allowed to say about your credits tightened. Suddenly the purchase was not just an environmental choice. It was a legal exposure, a brand risk, and a procurement decision all at the same time. So the people who own those risks had to get involved.
Who sits at the table now
Sustainability
Still drives the strategy and knows the climate goals. But no longer makes the call alone.
Legal
Asks whether the claims the company plans to make are defensible if challenged.
Brand and comms
Asks how this looks if it lands on the front page, and whether the story holds up.
Procurement and finance
Treats credits like any other supplier purchase: due diligence, documentation, value for money.
The team that buys credits in 2026 looks less like a green working group and more like a credit committee.
Why this is actually good news
It sounds like more friction, and it is. But it is the healthy kind. When several teams with different worries all have to sign off, weak credits get caught before the money goes out. The company ends up with a purchase it can stand behind in a board meeting and in a news story. That is the entire goal: not just buying carbon, but buying carbon you can defend.
What makes the team decision easier
Here is the practical payoff. A cross-functional group does not want to relitigate climate science. It wants a shared, trustworthy reference point so legal, brand, and procurement can all look at the same evidence. That is where an independent rating earns its keep. A buyer-side rating from a firm like Calyx Global gives every seat at the table one defensible source to point to, which is what turns a slow, nervous debate into a clear decision.
Where to go next
That is the shift: carbon buying grew up from a one-desk task into a team decision, because the risks grew up too. For the deeper version, including the three-filter process that has replaced the old broker call, read Part 4 of the series. And if you want to see where the whole market is heading and why this all matters, that is Part 5, the reform loop.
Carbon Credit 101 · Step 5 of 5
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A note from the author. I am a writer who cares about sustainability, and when it comes to carbon credits I am still very much a learner. There are a lot of people who know this market far better than I do, and I have real respect for the work they have put into building it. If I got something wrong in here, I apologize, and I would genuinely like to hear about it so I can learn and correct it. I am writing this to start a conversation, not to have the last word. That is the whole point. This is a learning experience for me too, and the conversation is what moves all of us forward. If this piece helped you, share it. If you see it differently, even better. Let’s talk.