While these methods are heavily used, there are concerns regarding the distributions of available measurements, how well these sample the globe, and such issues as the degree to which the methods have spatial and seasonal biases or
apparent divergence in the relationship with recent climate change.
The most glaring example is your quote of the section that states «
apparent divergences between land - based temperature records and satellite - based measurements, the latter showing some cooling rather than warming in recent years;» without noticing the start of that paragraph which states»... we heard doubts expressed about other features of the accepted science.
Economics is supposed to provide mathematical modelling of human behaviour, but
the apparent divergence of economic theory from reality in recent years has become a burr under Orrell's saddle.
I am not saying that this is the basis for
the apparent divergence between Kheil (2007), and Schmidt.