Preparing for Al Gore’s Lecture at Rice University

By Andy May

I have a ticket to Al Gore’s global warming lecture at Rice University on October 23 and plan to attend, I’m very curious about what he will say. The announcement says he will take questions, so I’ve scoured his web site to get ideas for a question should I have the opportunity. Continue reading

University of Chicago Air Quality-Life Index

By Andy May

The University of Chicago Energy Policy Institute has come up with a new measure of air pollution they call the Air Quality-Life Index or AQLI. It uses particulate pollution concentrations to compute an index that correlates well with expected life expectancy. Particulate concentrations <10 μm (PM10) and <2.5 μm (P2.5) are utilized in the study.

The results are supported by research on the health effects of Chinese domestic and industrial coal use (see PNAS, September 26, 2017, here). The study shows that the unregulated use of coal, i.e. without any pollution controls, to heat houses in China causes much of the Chinese population to be exposed to dangerous levels of PM10. They concluded that a 10 μg/m3 increase in PM10 reduces Chinese life expectancy by 0.64 years (95% confidence interval=0.21-1.07).

Continue reading

Coral Reefs, Temperature and Ocean pH

By Andy May

Georgiou, et al. 2015 have reported that coral reefs in the Australian Great Barrier Reef, near Heron Island, are insensitive to ocean pH changes. Continue reading

HADCRU Power and Temperature

By Andy May

Generally, it is agreed that the Earth’s top-of-atmosphere (TOA) energy budget balances to within the margin of error of the estimates (see Kiehl and Trenberth, 1997). The incoming energy, after subtracting reflected energy, is thought to be roughly 239 W/m2 which matches, within the margin of error, the outgoing energy of roughly 239 W/m2. Satellite data suggest TOA energy imbalances of up to 6.4 W/m2 (Trenberth, et al., 2008). However, Zhang, et al. (2004) suggest that the uncertainty in the TOA measurements is 5-10 W/m2 and the uncertainty in the surface radiation absorption and emission is larger, 10-15 W/m2. We examine some potential causes for these uncertainties. Continue reading

Review and Summary of three Important Atmospheric Physics Papers

By Andy May


In 2014, Dr. Michael Connolly and Dr. Ronan Connolly posted three important, non-peer reviewed papers on atmospheric physics on their web site. These papers can be accessed online here. The papers are difficult to understand as they cover several fields of study and are very long. But, they present new data and a novel interpretation of energy flow in the atmosphere that should be seriously considered in the climate change debate.

By studying weather balloon data around the world Connolly and Connolly show that the temperature profile of the atmosphere to the stratosphere can be completely explained using the gas laws, humidity and phase changes. The atmospheric temperature profile does not appear to be influenced, to any measurable extent, by infrared active gases like carbon dioxide. Continue reading

The Effects of the Bray Climate and Solar Cycle

By Andy May

Javier has posted three new essays on the Bray climate and solar cycle on Judith Curry’s web site. Part A is here, part B is here and Part C is here. In these posts, he lays out the evidence, in some detail, for the climate cycle and the associated solar cycle. Here I will summarize the results of his analysis and explain why it matters. The Bray solar and climate cycle are arguably the most important climate/solar cycle of the Holocene Epoch. Continue reading

My excellent adventure into the March for Science

By Andy May

I love visiting WUWT and Climate, Etc., but most of the visitors to these sites, like me, are skeptical that the current global warming is dangerous. I’ve often visited the notable alarmist websites, such as and, to gain an understanding of why they think the current warming is dangerous and man-made. I’ve even written posts on their views, like here, and I’ve cited their posts where appropriate. But, what about the regular educated population of people who believe global warming is dangerous and carbon dioxide is a pollutant? To be a well-rounded climate science writer shouldn’t I engage with the climate-scientist-on-the-street? Continue reading