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 Originally Posted by wufwugy
Do they all agree that the planet is warming at a faster pace coinciding with human activity? If the opening graph in the OP video is accurate, what statistical methods do they use to justify that?
Don't know, but it can't be based solely on the numbers in the graph. I'm pretty sure the more serious ones recognized that a long time ago.
One might argue along the following lines: All other things being equal, global temperature is as likely to have gone down as gone up in the last 150 years, or to have just gone on some random walk. All manner of possibilities are equally likely a priori.
However, the fact that temperature is rising steeply, and that this correlates with the development of industry and the burning of fossil fuels/deforestation, etc., etc., could be seen as suggestive of human-caused warming. It would not be conclusive proof but it would point in that direction.
An analogy would be if a coin came up heads X number of times in a row. It's not that this can't occur by chance, and hasn't occurred by chance in the past, but it's suspicious if this time it just happened to start at the same time as you let Greenhouse Gary do the flipping. With this information alone you can't prove Greenhouse Gary is rigging the global temperature coin (correlation doesn't prove causation) but you'd probably be wise to look into it further.
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