The global - mean temperature did not rise steadily: statistical
analyses of the temperature record since 1850 reveal significant year - to - year and decade - to - decade variability.
He is a prominent critic of scientific studies
of temperature records of the past 1000 years that show increasing global temperatures.
To shed light on the difficult question of when human - caused warming began, the authors of the new study make use of a different
type of temperature record.
As far as climate science is concerned, the
string of temperature records broken recently has killed any idea that we are in a «pause» or «hiatus».
Which would seem to leave the published proxy temp reconstructions in limbo — the temperature resolution of the reconstructions appears too coarse to shed much light on the details
of temperature record in the past millenium or two.
We now find that Briffa calibrated centuries
of temperature records on the strength of 12 trees and one rogue outlier in particular.
reality check — as an observation, there is so much effort spent on the finer
details of temperature record manipulation of national record databases, that actually the the basic argument is: how does co2, which is.035 % of the atmosphere, cause such an alarming rate of global warming?
Then came Watts's new paper, which — as with his earlier efforts — is focused on questioning the quality of
decades of temperature records generated by weather stations across the lower 48 states.
As far as i was aware the climate sensitivity issue still remains, as too do the questions over the
validity of the temperature records (raising the distinct possibility that the change you are trying to detect is smaller than the error limits themselves) and the modelling parameters.