Climate change indicators

All data are referenced at https://zacklabe.com/resources-and-data-references/.

Heatmap-style visualization showing global average surface temperature anomalies, which are calculated relative to pre-industrial levels (1850-1900 – outlined in the IPCC Special Report on Global Warming of 1.5°C). Data is from NOAA Merged Land Ocean Global Surface Temperature Analysis (NOAAGlobalTemp v6.0.0; https://www.ncei.noaa.gov/products/land-based-station/noaa-global-temp). Graphic updated using data through December 2025. Red dots mark the year of each respective warmest month in this dataset.

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