Climate Trends republishes two key climate records once a day: NASA’s global surface temperature analysis (GISTEMP v4) and NOAA’s monthly CO₂ measurements at Mauna Loa.

Values are copied without modification; rankings, annual changes and charts are calculated by this site.

How this site works

Once a day an automated job downloads the latest public data from the sources listed below, checks it and rebuilds these static pages. Nothing is invented or estimated by us: every number comes from a cited source.

Data sources

• NASA GISS — GISTEMP v4 Surface Temperature Analysis — NASA data: public domain, credit requested
• NOAA Global Monitoring Laboratory — Mauna Loa CO₂ monthly mean — NOAA data: public domain, please cite NOAA GML

Languages

The interface is available in 14 languages and was translated by hand. Where free text from a source is translated, it is done by offline machine translation and labelled as such.

Independence

Independent site, not affiliated with the data providers named here. For information only. Figures are reproduced from the cited sources, may be delayed or contain errors, and are not advice of any kind. Always check the original source.

Using the data

Please follow each source's own terms when reusing the data and credit the original publisher.

Affiliate links

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Image credits

Image: U.S. National Park Service · Public domain