13 Aug '11, 1pm

Global warming is a prediction come true. See e.g. Wallace Broecker 1975 predictions against observations:

Global warming is a prediction come true. See e.g. Wallace Broecker 1975 predictions against observations:

Lessons from Past Climate Predictions: Wallace Broecker Posted on 18 July 2011 by dana1981 Wallace Broecker was among the first climate scientists to use simple climate models to predict future global temperature changes. His 1975 paper Climatic Change: Are We on the Brink of a Pronounced Global Warming? is widely credited with coining the term "global warming". In that paper, Broecker modeled the effects of the expected future increase of CO2 due to humans burning fossil fuels, combined with a natural climate cycle which he estimated based on Greeland ice core records, and tweaked to match the observed temperature record at the time (Figure 1). Figure 1: Broecker's global temperature prediction This was a very simple model, excluding the effects of the sun, volcanoes, other greenhouse gases, aerosols, and so forth, which Broecker acknowledged: "In this report only the int...

Full article: http://www.skepticalscience.com/lessons-from-past-climate...

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