Climate spiral

An early Ed Hawkins climate spiral portrays global warming,^{[Note 1]} the spiral's growing radius indicating how temperature has increased since 1850.^[1]

Final frame of a climate spiral^[2]^{[Note 1]}

A climate spiral (sometimes referred to as a temperature spiral^[3]^[4]) is an animated data visualization graphic designed as a "simple and effective demonstration of the progression of global warming", especially for general audiences.^[5]

The original climate spiral was published on 9 May 2016 by British climate scientist Ed Hawkins to portray global average temperature anomaly (change) since 1850.^[6] The visualization graphic has since been expanded to represent other time-varying quantities such as atmospheric CO₂ concentration,^[3] carbon budget,^[3] and arctic sea ice volume.^[7]^[8]

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^ Cite error: The named reference ClimateSpiralGraphic was invoked but never defined (see the help page).
^ ^a ^b ^c Cite error: The named reference OpenClimateData_SpiralList was invoked but never defined (see the help page).
^ Cite error: The named reference Grist_20160531 was invoked but never defined (see the help page).
^ Cite error: The named reference WashPost_20160728 was invoked but never defined (see the help page).
^ Cite error: The named reference UofReadingWeblogs_201605 was invoked but never defined (see the help page).
^ Cite error: The named reference ClimateLabBook_20170509 was invoked but never defined (see the help page).
^ Cite error: The named reference NatGeo_20170108 was invoked but never defined (see the help page).

[WashPost_20160511-2] Cite error: The named reference WashPost_20160511 was invoked but never defined (see the help page).

[ClimateSpiralGraphic-3] Cite error: The named reference ClimateSpiralGraphic was invoked but never defined (see the help page).

[OpenClimateData_SpiralList-4] Cite error: The named reference OpenClimateData_SpiralList was invoked but never defined (see the help page).

[Grist_20160531-5] Cite error: The named reference Grist_20160531 was invoked but never defined (see the help page).

[WashPost_20160728-6] Cite error: The named reference WashPost_20160728 was invoked but never defined (see the help page).

[UofReadingWeblogs_201605-7] Cite error: The named reference UofReadingWeblogs_201605 was invoked but never defined (see the help page).

[ClimateLabBook_20170509-8] Cite error: The named reference ClimateLabBook_20170509 was invoked but never defined (see the help page).

[NatGeo_20170108-9] Cite error: The named reference NatGeo_20170108 was invoked but never defined (see the help page).

[Note 1]

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[2]

[3]

[4]

[5]

[6]

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