In the run-up to World Environment Day this week, "nature-based solutions" is the phrase doing a lot of work in the global messaging. The United Nations Environment Programme frames it well: bringing different sectors together to protect, restore, and sustainably manage ecosystems — restoring forests and wetlands, protecting mangroves and grasslands — as a way to fight climate change with the climate's own machinery. It is a good frame. It is also, at the global scale, easy to nod at and hard to feel.
So we want to make the local case, because that is the one that actually moves budgets and changes a place.
The returns are not just carbon
Yes, a restored wetland or a reforested slope stores carbon, and that matters for the planetary ledger. But if carbon were the only return, nature-based solutions would always lose the budget fight to something cheaper. The reason to do them is that they pay back in a stack of benefits that land right where the work happens:
- Cleaner water. Wetlands are filtration infrastructure. They trap sediment and take up the nutrients that otherwise feed algae blooms downstream. Restore one and you have effectively built a water-treatment asset that runs on sunlight and maintains itself.
- Less flooding. A floodplain that is allowed to be a floodplain absorbs and slows water that would otherwise arrive all at once in the streets below. In a heavier-rainfall climate, that storage is worth more every year.
- Cooler air. Urban trees and green space are among the most effective tools we have against extreme heat, which our own data shows hitting the least-shaded neighborhoods hardest. Canopy is climate adaptation you can stand under.
- Local jobs. Restoration is labor. Planting, monitoring, invasive-species removal, and long-term stewardship are work that, by its nature, cannot be offshored. The money spent stays in the community doing the restoring.
Why the "solution" framing is the right one
The older language around this work was "preservation" — draw a line, keep people out, leave it alone. That has its place. But nature-based solutions is a more useful idea, because it treats a healthy ecosystem as active infrastructure that solves a problem a community already has and is already paying for in some other, worse way. A town spending heavily to dredge sediment and treat nutrient-loaded water has a wetland-shaped hole in its budget. A neighborhood losing productivity and health to extreme heat has a canopy-shaped one.
That reframing is what gets these projects funded, because it puts them in the same conversation as the gray infrastructure they can partly replace or relieve — the pipes, the basins, the treatment plants. A wetland is not a substitute for an engineer. But in the right place it does work the concrete would otherwise have to, at lower cost and with a pile of co-benefits the concrete cannot offer.
What we are advocating for, locally
Our ask, in this season of global statements, is local and specific: that restoration be treated as infrastructure in the places that fund infrastructure. That a floodplain easement compete on equal footing with a drainage upgrade. That a tree-planting line item be evaluated as the heat-mitigation and stormwater asset it is, not as landscaping. The global frame gives us the language. The local ledger is where it has to win. We think it can, because on a local ledger, nature-based solutions are not idealism. They are the cheaper way to get several things a community needs at once.
