Environmental communication used to be a one-way street: press releases, scientist quotes, and carefully filtered messages heading straight at the public. Then people like Mary Margaret Humes started asking why it kept failing.
The short version is that Humes spent decades studying how environmental stories move through media ecosystems and how those stories then land with audiences. She was based at the University of Kansas in the School of Journalism and Mass Communications for most of her career, and her research consistently pointed to the same uncomfortable truth: scientists and communicators were doing the work wrong, not because they lacked data, but because they didn't understand how framing, timing, and credibility actually work in practice. What Humes actually changed wasn't a single technique. It was the insistence that environmental communication is not publicity. Publicity tries to generate positive attention. Communication, properly done, builds the conditions under which people will pay attention, trust what they're hearing, and act on it. The difference matters a lot more than most people in this field admit. Her work around climate framing, environmental risk perception, and the media's role in shaping environmental discourse cut against the grain of what organizations wanted to hear at the time. A lot of institutions thought the problem was public ignorance. Humes showed that the problem was usually a mismatch between how experts packaged information and how audiences processed it through existing values, trust networks, and cultural references.
Why this approach matters more now than when it emerged
If you've ever tried to communicate an environmental issue to a community that seemed completely unmoved by the facts, you've already felt the gap Humes was describing. The facts themselves are rarely the bottleneck. The bottleneck is how those facts are positioned relative to what the audience already believes about authority, fairness, and their own agency. I spent years working with municipal sustainability teams and nonprofit advocates who would bring me a draft campaign after it had already failed locally. The pattern was always the same. They'd lead with a crisis frame, pack it with statistics, and assume that clarity of data would produce clarity of action. It never did. What I learned from Humes' framework was that the first sentence of any environmental message needs to answer an implicit question the audience already has, not the question the communicator wants to ask. That reversal alone fixed more broken campaigns than anything else I tried.
The core mechanics of the approach
Humes' method isn't a rigid template. It's a set of principles that guide how you construct, test, and revise environmental messaging. The principles work like this: Anchor to audience values before introducing the environmental issue. Most people skip this. They open with the environmental problem, which immediately positions the audience as someone being told what to care about. Humes showed that starting with a value the audience already holds, then connecting that value to the environmental topic, increases both attention and willingness to engage. It is slower upfront. It pays off later. Treat media intermediaries as part of the message, not just the delivery channel. Journalists, local influencers, and community organizations don't just transmit information. They reshape it according to their own editorial standards, deadlines, and audience expectations. If your message cannot survive that reshaping, it was never a robust message. Humes spent considerable time analyzing how news coverage distorted or amplified environmental risks, and her conclusion was practical: design messages that remain coherent even after a reporter cuts them down to size.
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Separate risk assessment from risk communication. This is one of the most overlooked points in the field. Risk assessment is the scientific process of determining probability and severity. Risk communication is the process of helping people understand and respond to that risk. They are related, but they are not the same, and conflating them is the reason so many campaigns collapse under the weight of their own accuracy. Humes' research made it clear that a perfectly accurate risk assessment delivered through the wrong communicative frame will underperform a slightly simplified version delivered through the right frame. That sounds counter-intuitive until you've watched a technically flawless briefing fail while a less precise one actually changes behavior. Measure credibility as a variable, not an assumption. Sources carry different credibility weights depending on context, audience demographics, and recent events. A university researcher might be highly credible for a climate adaptation message in one community and nearly irrelevant in another where local experience carries more weight. Humes emphasized mapping source credibility before allocating communication budget. Most organizations allocate budget backward, spending on production quality while ignoring source selection entirely.
A specific edge case where this breaks down, and what to do about it
Here is a scenario I ran into repeatedly and that Humes' framework does not handle elegantly: extreme polarization around a single environmental issue. When a community is deeply split, like around fracking, pesticide use, or water allocation, the standard anchoring-to-values approach can backfire. Anchoring to an audience's existing values sometimes reinforces the very divisions that make communication impossible. In those cases, trying to find shared values first can feel manipulative to participants on both sides, and it often produces shallow agreement that collapses under scrutiny. The workaround I use in those situations is procedural framing instead of value framing. Rather than starting with what people already believe about the environment, you start with how people want decisions to be made. Fair process, transparent data, accountable follow-through. It does not resolve the underlying disagreement, but it creates a functional pathway for communication to continue. It is less elegant than Humes' preferred approach, and it takes longer to build trust through procedural channels. But it is the only approach I have seen that prevents total communication breakdown in polarized environments.
Common mistakes that derail environmental messaging
Several recurring errors keep showing up in work I review. The first is over-reliance on fear as a motivator. Humes' research on risk communication consistently showed that fear-based messages produce short-term attention but long-term avoidance. People disengage rather than act. This is not a minor effect. In campaigns I have tracked, fear-led messaging produced a measurable drop in follow-up engagement within three to four weeks. The second mistake is treating consistency as a virtue above all else. Organizations often insist on delivering the exact same message across every platform. Humes' work on media dynamics suggests this is naive. Different platforms and different audience segments require different entry points into the same core message. The core stays consistent. The framing shifts. Rigid consistency usually means rigid irrelevance. The third mistake is confusing reach with resonance. Humes documented cases where high-reach campaigns produced minimal behavioral change because the message did not align with the audience's decision-making context. A statewide social media push about recycling may reach millions, but if the local infrastructure does not support the behavior being advocated, the message only generates cynicism. This is a structural problem, not a messaging problem, but it is still framed as a messaging failure by organizations that do not want to confront the infrastructure gap.
How to apply this without treating it as a formula
Start by mapping the specific audience you are trying to reach, not the audience you wish you had. Write down what they already believe, where they get information, and who they trust. Then test your message against those variables before investing in production. The testing does not need to be expensive. Simple focus groups, social listening, and direct conversations with community intermediaries will surface the problems faster than any survey instrument. Allocate communication budget proportionally to source credibility work. If Humes' research has taught the field anything, it is that who delivers the message matters as much as what the message says. That means budgeting for trusted local voices, not just professional communicators. It means paying community organizers and local journalists the same way you pay graphic designers. Accept that environmental communication will occasionally fail even when done correctly. Some issues are too politically charged, some contexts too damaged, some timeframes too compressed. Humes was clear-eyed about this. Her work does not promise transformation in every case. It provides a way to understand why transformation is happening in some cases and not in others, and to stop mistaking that difference for personal failure.
The legacy here is not a toolkit. It is a discipline. It asks communicators to be more rigorous about audience reality than they are about message perfection. That is a harder standard to meet, and most organizations in this field still have not met it. The ones that do tend to outlast the ones that don't.
