How constant is the “solar constant?”

By Andy May The IPCC lowered their estimate of the impact of solar variability on the Earth’s climate from the already low value of 0.12 W/m2 (Watts per square-meter) given in their fourth report (AR4), to a still lower value of 0.05 W/m2 in the 2013 fifth report (AR5), the new value is illustrated in Figure 1.…

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The Great Climate Debate Report

By Andy May ***Updated*** After I posted my series on the great climate debate between Dr. William Happer and Dr. David Karoly, hosted by TheBestSchools.org, I received several requests to pull the series together into one pdf. This is now done, and the pdf can be downloaded here. Since the series was posted, we have…

The Great Debate Part D – Summary

  By Andy May In Part A of the Great Debate series (see here) we discussed Dr. David Karoly’s and Dr. William Happer’s arguments regarding how unusual recent global warming is and how we know the recent observed increase in CO2 is due to human activities. In Part B we examined their thoughts on the amount of warming caused…

What is warming the Earth?

Guest Post By Javier A no-assumptions look at the global warming evidence helps clarify the possibilities. The planet’s surface has been warming since the depths of the Little Ice Age, and particularly since ~ 1850 AD. The surface temperature record, however incomplete or uncertain, reflects this warming. Hypotheses about why the warming is taking place…

A Second Letter to the Geological Society

In June of this year, Howard Dewhirst, a fellow of The Geological Society (London), wrote a letter to the President of the Society voicing the concern of 33 current and former fellows of the society, as well as other concerned geoscientists, that the Society’s position on climate change is outdated and one-sided. As of this…

New York Times Lies about Trump Lies

By Andy May The New York Times published a list of Trump’s “lies,” told during the period January 21 through November 2017, on December 14, 2017 here. It contains 106 unique Trump statements. I’ve classified these statements, in as objective a way as possible, but obviously many of these judgements are subjective and others might…