NASA temperature figures show agency reworking recent numbers upwards, older numbers downwards

Does 'climate change' mean 'changing data'?

"So what is the probability of this effort consistently increasing recent temperatures and decreasing older temperatures? From a statistical viewpoint, data recalculation should cause each year to have a 50/50 probability of going either up or down – thus the odds of all 70 adjusted years working in concert to increase the slope of the graph are an astronomical 2 raised to the power of 70. That is one-thousand-billion-billion to one. This isn't an exact representation of the odds because for some of the years (less than 15) the revisions went against the trend – but even a 55/15 split is about as likely as a room full of chimpanzees eventually typing Hamlet. That would be equivalent to flipping a penny 70 times and having it come up heads 55 times. It will never happen – one trillion to one odds (2 raised to the power 40).