U.S. Warming Happens During Winter Nights

Willis Eschenbach submits a fascinating dissection of US temperature claims: even accepting the temperature data as is, with upwards manipulations, all the warming claimed in the past century occurs during winter months at night.

This chart overlays every year back to 1895, with the heavy red line 2009. It is right in the middle, and instead of being “one of the warmest years ever”, looks about average.

He then charted monthly temperatures averaged for each decade, and found almost all months were within a very narrow range except the winter months. (You can see the slightly broader range in Nov to Feb in the chart.) He concludes:

My point in all of this is that the temperature changes that we are discussing (a global rise of a bit more than half a degree C in the last century) are trivially small. A half degree change cannot be sensed by the human body. In addition, the changes are generally occurring in the winter, outside of the tropics in the cooler parts of the planet, and at night.

About Duncan Davidson 228 Articles

Affiliation: NetService Ventures

Duncan is an advisor to NetService Ventures, where he focuses on digital media and the mobile Internet.

Previously he was at four start-ups: Xumii, a mobile social service based on a Social Addressbook; SkyPilot Networks, the performance leader of wireless mesh systems for last-mile access, where he was the founding CEO; Covad Communications (Amex: DVW, $9B market cap at the peak), the leading independent DSL access provider, where he was the founding Chairman; InterTrust Technologies ($9B market cap at the peak), the pioneer in digital rights management technologies, now owned by Sony and Philips, where he was SVP Business Development and the pitchman for the IPO.

Before these ventures, Duncan was a partner at Cambridge Venture Partners, an early-stage venture firm, and managing partner of Gemini McKenna, a joint venture between Regis McKenna's marketing firm and Gemini Consulting, the global management consulting arm of Cap Gemini.

He serves on the board or is an adviser to Aggregate Knowledge (content discovery), Livescribe (digital pen), AllVoices (citizen journalism), Xumii (mobile social addressbook), Verismo (Internet settop box), and Widevine (DRM for IPTV).

Visit: Duncan Davidson's Blogs

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