This data set contains two series of average global temperature deviations for years 1880-1987. These series are same as used in Shumway and Stoffer (2006), where they are known as HL and Folland series. For more details, see Shumway and Stoffer (2006, p. 327).
A time series object containing 108 times 2 observations.
Shumway, Robert H. and Stoffer, David S. (2006). Time Series Analysis and Its Applications: With R examples.