The Threat List

Status:Environment

GlobalEnvironmentSince 1970Deep-sourcedhigh confidence

Overfishing and Fisheries Collapse

A third of global fish stocks are harvested beyond biological limits.

Severity score

49.3

Serious · default weighting

Trajectory

Worsening

How this is ranked

What this is

Industrial fleets, subsidies and illegal unreported fishing have pushed a large share of assessed stocks past sustainable levels. Small-scale fishers in West Africa and Southeast Asia lose their livelihoods first, and bycatch destroys non-target species at scale.

Score breakdown

Each factor is a 0–100 relative severity index, not the raw figure or a specific time period. The actual counts and periods are listed under "Standardized Impact" on the right.

Loss of life

12

Direct and attributable mortality, normalised across annual and cumulative tolls.

Lives negatively impacted

66

People displaced, injured, food-insecure, exposed or otherwise materially harmed.

Financial cost

54

Direct damage, lost output and health-system spend attributable to the event.

Environmental impact

84

Emissions, habitat and biodiversity loss, contamination and irreversibility.

Trajectory

58

Whether the situation is escalating, and how much worse it is plausibly getting.

Audit trail

Everything this entry has been through — when it was first searched for, queued, reviewed and approved, and how its figures and rank have moved since.

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