Who gains from saving nature
Ledger 1 : 33 — For each dollar financing nature-based solutions in 2023, about $33 financed activities harmful to nature. (UNEP)
Cases / Law, regulation and treaties · United States · date not stated

Salmon return to upper Klamath basin after historic dam removal

Short record: the main facts, with sources. A full case file has not been prepared.

Nature's voice · report
No measurement of the harm done to me here is on record.
Did nature suffer? Not measured.
Not on record
  • The record does not name which of my species, waters, soils or forests were harmed.
What the record lacks: 1 none on record · 1 insufficient · 1 not measured See the gaps

Salmon returned to the upper Klamath basin within a year of a historic dam removal in Oregon, OPB reported in 2025. The sources reviewed give no counts or costs for the removal.

What?
A historic dam removal in Klamath, Oregon, after which salmon returned to the upper basin within a year, OPB reported. OPB
Where?
Klamath, Oregon, United States OPB
When?
Reported 31 October 2025 OPB
Who?
Gained
None on record
Lost
None on record
Harmed
None on record
Why?
Not stated in the sources reviewed.
How?
Removal of a dam, after which salmon returned to the upper basin within a year. OPB
5 of 6 questions answered from the record · open: who

What happened

The record, in order.

OPB reported in 2025 that salmon returned to the upper Klamath basin within a year of a historic dam removal.

The OPB article, dated 31 October 2025, concerns a historic dam removal in Klamath, Oregon.

    In court and with insurers

    Every proceeding and every insurer decision on record.

    Lawsuits and rulings

    No court case on record. No court has ruled on this case.

    Insurers

    No insurer decision on record.

    What we don't know

    Undisclosed, unproven, untried: recorded as data.

    Nature

    • Not measured Harm to nature: The record holds no measurement of harm to nature.

    Record

    • None on record Not stated in the sources reviewed: the dates of the removal, the dam owners, the cost, or the number of fish that returned.
    • Insufficient Reported but not verified: 542 barrier removals in Europe in 2024, and a reversed dam decision in Korea; both lack a source URL in the material collected.

    Did the harm stop?

    Not stated in the sources reviewed.

    Who paid?

    Not stated in the sources reviewed.

    Sources

    Voices on record: — Company or project— Government and regulators— Courts✓ Press and investigations— Communities and civil society— Researchers