Our climate fingerprints are everywhere, for anyone to see.

Cliff Mitchell - 19/02/2026
 

A person's hand on a window with rain drops photo image by Clay LeConey. Free to use under Unsplash License

From Stoke-on-Trent to the ocean depths and upper atmosphere, the fingerprints of human-made climate change are clear to see.

Warming stripes have been used as a method of communicating climatic temperature changes since 2018. They are simple, easy to understand, and don’t need a scientific background to interpret. Each ‘stripe’ represents the mean, near-surface temperature for an entire year, with blue colours representing cooler years and red colours, warmer years. More than a billion individual thermometer measurements are condensed into such charts.

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