I expanded our section on climate trends. The graph below compares the fourier transform of the CRU global surface temperature history to the fourier transform of pink noise.
The global surface transform jumps up and down because we have only a few hundred points from which to obtain the transform. Nevertheless, the trend in the transform is clear. The transform follows the pink noise transform up to 0.5 cycles/yr, and flattens out like white noise.
Our recent climate history looks like pink noise added to some white noise. It looks like its a sequence of random fluctuations. I challenge anyone to prove to us that our recent climate history is not random. Until we have such proof, it is our duty to assume that the climate is random.