Quote:
Count Iblis II, I'm just saying that Australia and parts of Antarctica have not increased in temperature of the ast 150 years. Period. Nothing else. Whilst it makes sence that Co2 would increase temperatures like it does in a greenhouse, it obviously is making no significant effect on Australia and parts of Antarctica. Let me say once again. There is no evidence to say that Australia and parts of Antarctica are warming up.
That's a very unscientific statement if you don't tell what "significant" means. "Not significant", as you define it, is that any change falls within your confidence limit. But if you are obscure about your confidence limits and just say "not significant" than that's a meaningless statement.

Your methods are only useful where a small effect would not be a problem. E.g. if you test the effectiveness of a new drug using a double blind trial, then if the trial turns out to be negative, you won't be interested in that drug, even if it does have a small effect that was not detected because it falls within the confidence limits.

In the case of Global Warming, the observed effect falls within your confidence limits, so you results are irrelevant.