Yeah... so what? It has been around for 28 years and has 50 citations. But Davy has only been around for 5 years and has 88 citations. If the number of citations is so important then why are you citing the results of a study with less?
You don't think so. Did you even go and look? I doubt it because Davy says this:
"The global decrease in the DTR during the latter half of the 20th century has been documented in the literature (Karl
et al., 1984). Later, this distinct pattern was discovered in both global and regional temperature records (Karl
et al., 1993). However, there has been some degree of temporal variation in the rate of change of the DTR, with some evidence of a slowing or even reversal of the negative trend in recent decades (Hartmann
et al., 2013)."
And this isn't the first time this has been quoted for you.
Yes, and Davy also says that Easterling had a Northern Hemisphere 1950 to 1993 difference of T-max .08, and T-min of .17 and that Vose had a Northern Hemisphere 1950 to 2004 difference of T-max .16, and T-min of .22. Sorry, long... but further cherry-picking of just North America isn't going to help your argument.
You think this based on what? Another of your wild guesses or is it just what you
want to believe. Because Davy is actually about what is causing the observed differences. And you clearly have remained willfully ignorant of what it says because
I pointed out what Davy says about the causes over two years ago when you falsely claimed that CO2 was the cause of the differences. Davy also says this about aerosols:
"The effect of changing land cover – land use, while being recognized as an important factor (Feddema
et al.,
2005; Hua and Chen,
2013), is not included in our analysis, nor are effects linked to atmospheric aerosols, the effect of which on the DTR in all‐sky conditions over Europe was found to be weak, with a somewhat larger effect on the DTR decrease only during clear‐sky conditions (Auchmann
et al., 2013)."
For Christ's sake long... why don't you go and read all of Davy and learn what it actually says instead of just constantly cherry-picking the parts that back up your denialist agenda while you ignore the rest?
Yeah... mostly. As in more than half but nowhere near your made up 75%.
Of course... especially when their "speculation" directly refutes your "speculation". Just another example of you cherry-picking what you want from different sources and studies while you ignore what you don't like.