Here is some very interesting data from the Alaska Climate Research Center. It is common for global warming alarmists to argue that Alaska has shown significant warming over the last 50 years and this is completely true. The deception is that it has not warmed at all over the last 30 years. According to the ACRC:
“Considering just a linear trend can mask some important variability characteristics in the time series. Figure 2 shows clearly that this trend is non-linear: a linear trend might have been expected from the fairly steady observed increase of CO2 during this time period. The figure shows the temperature departure from the long-term mean (1949-2003) for the average of all stations. It can be seen that there are large variations from year to year and the 5-year moving average demonstrates cyclical behavior. The period 1949 to 1975 was substantially colder than the period from 1977 to 2003, however since 1977 no additional warming has occurred in Alaska with the exception of Barrow and a few other locations. In 1976, a stepwise shift appears in the temperature data, which corresponds to a phase shift of the Pacific Decadal Oscillation from a negative phase to a positive phase.”
And here it is for the whole world to see.
