By Steve Haner
Two prominent American climate researchers who focus on data rather than models have examined 40 years of summer temperatures at Reagan National Airport. They found the hottest summer days are barely warmer than in the 1980s, an imperceptible change, but the coolest overnight temperatures have gotten dramatically warmer.
The change in the hottest daily highs amounted to half of one degree Fahrenheit but the coolest of the overnight lows were 5 degrees warmer. This is not the first time it has been demonstrated that mainly what has happened over recent decades is the nights are less cool, especially in urbanized areas. But this was a key Virginia weather station in Virginia’s most populous region reinforcing the point.
John Christy and Roy Spencer have long been interested in and published about the impact of human urban development on the “climate change” or “global warming” so widely reported. They are also two of the five authors of a recent Department of Energy report on the claims that greenhouse gas emissions are the culprit, a report that disputes the alarmist conclusions. The “scientists” who accept the “consensus” are in court trying to suppress the report, so I wanted to give you a chance to download and read it.
Christy was cited in a previous Bacon’s Rebellion post of mine making similar points about how what is seen as overall global warming was really about the nighttime temperatures. If greenhouse gases such as carbon dioxide or methane are the main cause of the rise, it ought to be uniform with no big disparity between daytime and nighttime changes, Christy says.
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