NOAA fudges the numbers to turn a January cooling trend since 1930 into a warming trend.

More climate manipulation: NOAA fudges the numbers to turn a January cooling trend since 1930 into a warming trend.

Adjusting the numbers might be justified in certain situations, but NOAA never explains why, and the adjustments they impose always create the illusion of a warming trend, even if the raw numbers say otherwise. If the adjustments were honest, I would expect them to move the numbers up and down much more randomly. That these adjustments only go one way — in favor of global warming — either suggests they are unconsciously allowing their biases to influence their work, or they are intentionally allowing their biases to influence their work.

Either way, their work is meaningless and untrustworthy, and should be ignored as less than worthless.