Berkeley and the Long-Term Trend

On a recent thread which was not about the temperature trend, but about Judith Curry’s mischaracterization of it, “Dan H.” stated that what mattered was the long-term trend, which was a steady increase at a rate between about 0.006 and 0.0075 deg.C/yr, and that the Berkeley data reinforced this idea. He later said that it was a steady increase plus a cyclic variation with period about 60 years. Let’s examine those ideas closely, shall we?