Temperatures
The climate has already changed — measured, not estimated.
World warming
You may have seen a different figure elsewhere for the same country: this is usually because the chosen reference period differs — the older it is (pre-industrial era, 1961-1990...), the bigger the measured gap looks, even for identical warming. Here, the reference is 1991-2020, the World Meteorological Organization's current climate normal.
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This data is calculated from a single point per country (its capital) — a large country can have very different climates from one region to another, which this single point cannot fully represent.
Source: Open-Meteo Historical Weather API (ERA5/ERA5-Land), CC BY 4.0 licence
Today in France, compared to normals
Warming across generations
This chart shows the global warming already measured since 1900, then the possible scenarios depending on today's collective choices. Pick a birth year below to see how much warming that generation could face at different ages.
👆 Click a scenario above to see its impact on nature and biodiversity.
Choose a birth year
2015
At birth (2015)
+1,1 °C
At age 30 (2045)
+1,6 °C – +2,2 °C
depending on collective choices
At age 50 (2065)
+1,5 °C – +3,2 °C
depending on collective choices
At age 70 (2085)
+1,4 °C – +4,2 °C
depending on collective choices
Source: NASA GISS (1900-2024 historical) and IPCC AR6 Working Group I, Table SPM.1 (2020-2100 scenarios). Original visualization by this site — not a reproduction of IPCC's own charts.