John Christy doesn’t like criticism of the satellite temperature record. He has multiple objections, but the one that struck me as bizarre is this one which was recently brought to my attention:



“Do they ever say that, unlike the surface data, the satellite datasets can be checked by a completely independent system – balloons?”



Yes, John, I do.

I have more than once.

More than twice even.

Every time I check the satellite datasets against balloons, to see whether they’re telling us the right story about the trend in temperature, the satellite datasets look like they’re wrong.