13 APR 2013 by ideonexus
The Problem with Occam's Razor
In climate forecasting, the situation is more equivocal: the theory about the greenhouse effect is strong, which supports more complicated models. However, temperature data is very noisy, which argues against them. Which consideration wins out? We can address this question empirically, by evaluating the success and failure of different predictive approaches in climate science. What matters most, as always, is how well the predictions do in the real world.
I would urge caution against reducin...Not all models can be simple.
13 APR 2013 by ideonexus
Conclusions of the IPCC
This IPCC finding makes several different assertions, each of which is worth considering in turn.
First, it claims that atmospheric concentrations of greenhouse gases like CO2 are increasing, and as a result of human activity. This is a matter of simple observation. Many industrial processes, particularly the use of fossil fuels, produce CO2 as a by-product.18 Because CO2 remains in the atmosphere for a long time, its concentrations have been rising: from about 315 parts per million (ppm) wh...Folksonomies: global warming
Folksonomies: global warming
The organization concludes that Global Warming, which is a very simple theory, is true.