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The Climate Story for:

France flagFrancevs.Morocco flagMorocco

Quarterfinals

Thu, July 9, 20264:00 p.m. EDTBoston StadiumOpen air

Review the modeled heat risk for this match and how climate change affected the odds.

Data

37%Chance of performance-impairing heat+11%From climate change

The July 9 match at Boston Stadium (France vs. Morocco) had a 37% chance of heat that can impair performance.

Those odds were 11 percentage points higher due to climate change.

The science explained

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World Cup 2026 & Climate Change

France flagFrance
Morocco flagMorocco

July 9, 2026 • Boston Stadium

QuarterfinalsOpen air
37%Chance of performance-impairing heat
+11%From climate change
  • “Performance-impairing heat” is heat above 28°C (82.4°F) — a threshold associated with elite players running slower, less far, and less often. Source: Climate Shift Index and ERA5 reanalysis.

Explore related data

Climate tools for Boston

Climate LocalExplore local climate impacts, data, and graphics for Boston, MA.OpenMassachusetts disaster summaryReview billion-dollar weather and climate disasters affecting Massachusetts.OpenClimate Shift IndexSee climate attribution for Boston on 2026-07-15.OpenHumid HeatCheck dangerous humid heat for Boston on 2026-07-15.Open

France flagFrance

Group I7 matches, 4 stadiums
Go to team page
Latest match:

France flagFRA—Spain flagSPA

99%Chance of performance-impairing heat+1%From climate change

Morocco flagMorocco

Group C6 matches, 5 stadiums
Go to team page
Latest match:

France flagFRA—Morocco flagMOR

37%Chance of performance-impairing heat+11%From climate change

Boston

United States flagUnited States

Go to stadium page
Latest match:

France flagFrance—Morocco flagMorocco

37%Chance of performance-impairing heat+11%From climate change