Betrayers of the Truth

Accordingly the motto of the oldest scientific institution is Nullius En Verba: Take no one’s word!

Urban Heat Island Effects on U.S. Temperature Trends, 1973-2020: USHCN vs. Hourly Weather Stations

I argue that, based upon the importance of quality temperature trend calculations to national energy policy, a new dataset not dependent upon the USHCN Tmax/Tmin observations is required.

‘Hidden’ NOAA temperature data reveals that 6 of the last 9 months were below normal in the USA – and NOAA can’t even get June right

A review of state-of-the-art climate data tells a different story than what NOAA tells the public. While media outlets scream “hottest ever” for the world in June and July (it’s…

Quote of the Week: That time when climate science believed UHI was causing most of the twentieth century warming

AMS fellow Joe D’Aleo writes of a time when Thomas Karl, former director of the National Climatic Data Center (NCDC) actually believed that UHI and station siting was a problem…

USHCN Monthly Temperature Adjustments

Guest Essay By Walter Dnes There have been a number of posts on USHCN temperature adjustments, including 1, 2, 3, 4, 5 and 6. They have focused primarily on annual adjustments. Whilst looking into…

NCDC's new USHCN hockey stick trick

Yesterday, NCDC released Version 2.5 of the USHCN data set. For those who don’t know, this is the U.S. Historical Climatology Network (USHCN) which NCDC considers a “gold standard” for…

About that missing USHCNv2 data…

Some correspondence from NCDC on that missing data from 2008 to the present:

An uncorrected assumption in BEST's station quality paper

I noted with a chuckle today, this statement over at the California Academy of Sciences “Climate Change Blog”: I think that we all need to be careful of not falling…

Watts et al paper 2nd discussion thread

The first press release announcement thread is getting big and unwieldy, and some commenters can’t finish loading the thread, so I’m providing this one with some updates. 1. Thanks to…

My response to NCDC's op-ed in the New York Times

Andrew Revkin asked me to provide comments on this article of his where the National Climatic Data Center was asked to respond to Watts et al 2012: A Closer Look…

New study shows half of the global warming in the USA is artificial

PRESS RELEASE – U.S. Temperature trends show a spurious doubling due to NOAA station siting problems and post measurement adjustments. Chico, CA July 29th, 2012 – 12 PM PDT –…

New paper on the quality of USHCN station siting

Dr. Roger Pielke Sr. draws attention today to a new study that cites Fall et al. 2011 aka the “Surfacestations Paper” that I co-authored, which was a follow up to…

Warming in the USHCN is mainly an artifact of adjustments

Dr. Roy Spencer proves what we have been saying for years, the USHCN (U.S. Historical Climatology Network) is a mess compounded by a bigger mess of adjustments. ============================================================== USHCN Surface…

Surfacestations.org News

California nearing completion for USHCN surveys. There are a number of surveys in the que that will soon be online, bringing California’s USHCN network to within half a dozen (or…