A poem about rising water that never mentions a wave: that is the first surprise. Dave Bonta's five lines carry a title, "Rising sea level", that sounds like a news bulletin, and then trade the language of science for the language of banking. The land "is charging the sea / interest for the growing debt." Instead of storms and floods we get a creditor, a debtor and a bill that keeps getting bigger.
The metaphor is slightly off-kilter on purpose. The one who charges interest is normally the one with power, and the land is cast as the confident lender, sure it is owed something. But look at what it actually collects: "this diminution." That word is the hinge of the poem. It renames the interest as a loss, so the land is being paid in shrinkage. The creditor's profit is its own disappearance. The central idea is that the way humans account for nature, as a ledger of what is owed and to whom, collapses when nature answers in its own terms. The land's sense of entitlement is the joke, and the poem leaves us to decide how funny it really is.
The ending is where the joke turns concrete. "Oysters in the office" is a fragment with no verb, like a caption under a photograph. An office is where debts are calculated and filed, and now shellfish have moved in. The image is absurd but also quietly literal: a place built for paperwork has become a place for a sea creature. Then comes the final line, "the sea terms a bed." Here the financial vocabulary changes hands. "Terms" belongs to loans and contracts, but it also means "names" or "calls." The sea sets the terms and does the naming. Where we see an office, it sees an oyster bed. The word "bed" adds a second layer, since work is replaced by rest, and the sea settles in as if it had always lived there.
The sound of the poem supports this. There is no rhyme and no steady meter, but the first and last line-ends, "debt" and "bed," share a vowel and a closing consonant, so they almost rhyme. That near-echo frames the poem and suggests the debt has been paid after all, just not in the currency the land expected. The long, Latinate "diminution" sticks out among the plain, mostly one-syllable words around it, as officially as a clause in a contract. The politeness of the word is part of the effect, since it is a very formal way to say that something is being lost.
The shape on the page does the same work. The first two lines run to roughly seven and eight syllables, and the last three shrink to five, six and five. The poem diminishes as we read it, like the thing it describes. The dash after "diminution" also matters. It holds the line open for a moment before the oysters arrive, so the surprise lands as a small drop. The present continuous in "is charging" suggests a process that is happening now and will not stop, much like the slow rise of the sea itself.
Most striking is the tone. Nothing here shouts. There are no exclamation marks, no words like "disaster" or "crisis," and the voice stays deadpan, almost clerical. That restraint makes the poem more unsettling than a louder one might be. The calm accountant's voice describes a situation in which the books can no longer be balanced, and we are left to notice what the speaker will not say.
That is where the poem's significance lies. Climate change is often presented as huge numbers and distant forecasts, which are hard to feel. Bonta takes a vocabulary everyone understands, debt, interest and terms, and shows how badly it fits. By the end, the question of who owes whom has turned around, and the sea, patient and unhurried, has the last word.