TerraVista Analytics — Global Climate Report 2025

Global Surface Temp Anomaly

1.47°C

▲ above pre-industrial

3rd warmest year on record (ERA5)

Atmospheric CO₂

425.6ppm

▲ +2.1 ppm from 2024

53% above pre-industrial levels

Ocean Heat Content (0-700m)

RecordHigh

▲ 5th consecutive record year

Oceans store 90% of excess heat

Arctic Sea Ice Extent (Max)

14.19M km²

▼ Lowest max on record

47-year satellite record low

Global Temperature Anomaly (1850–2025)

2025 at a Glance

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Third warmest year — 2025 was 1.47°C above pre-industrial levels, marginally cooler than 2023 (by 0.01°C) and 0.13°C below the record set in 2024.
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First 3-year average above 1.5°C — The 2023–2025 average exceeded the Paris Agreement threshold for the first time in the instrumental record.
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Warmest La Niña year — Despite La Niña conditions, 2025 recorded the highest global temperatures ever observed during a La Niña phase.
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11 warmest years: 2015–2025 are all among the 11 warmest years in the 1850–2025 instrumental record.

Atmospheric CO₂ Concentration (ppm)

Arctic Sea Ice Extent (September Minimum, M km²)

2025 Extreme Weather

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101 named tropical storms globally — above the 1991–2020 average of 88. 52 reached cyclone strength (≥74 mph).
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Record flash floods in the USA, China, South Korea, Pakistan, and India during summer months.
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770 million people experienced locally record-warm annual average temperatures in 2025, concentrated in Asia.
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Glacier melt continued unabated for the 4th consecutive year, with the reference network losing 850 mm water equivalent in the 2010s.

Fossil CO₂ Emissions (GtC/yr)

Global Mean Sea Level Rise

11cm

▲ since 1993 (satellite record)

Rate: 4.75 mm/yr (2012–2025), nearly double the 1993–2011 rate of 2.65 mm/yr

Paris Agreement Tracker

Current Warming Level (end of 2025)

≈1.4°C

3-Year Avg (2023–2025)

1.52°C

Remaining Carbon Budget (1.5°C)

170 GtCO₂

Projected Breach of 1.5°C

2029

1.5°C Breach Likelihood (2025–2029)

86%

For the first time, the three-year average (2023–2025) exceeded 1.5°C above pre-industrial levels according to ERA5 data. The WMO reports an 86% chance that at least one year in 2025–2029 will surpass 1.5°C. At current emission rates, the remaining carbon budget for 1.5°C (~170 GtCO₂) will be exhausted before 2030.