Several of my friends have asked me lately how I can be so positive that CO2 is not the evil, planet-killing pollutant that the science community insists that it is. This missive is a partial response to those friends. I will have more to add, likely some figures, charts, graphs, links to other sites and such. But, here is the first effort. Fair warning: this is a long, long piece. It covers a lot of ground. It is as accurate as I can make it. I haven't delved into the "why", but concentrated on the "what" and some of the "how." There are a few "whos" in here, also. Most of this has been covered by me in one or several earlier posts on SLB.
Yet, here was a data set of monthly averages for about a thousand cities. I decided to look at what was there, for the USA. There were 87 records, all in the lower 48 states. The data were for cities all across the USA, not in every state, but in most states, and were fairly evenly distributed. Some were in great cities like New York, Los Angeles, San Francisco, Miami, some in mid-sized cities like St. Louis, Spokane, and Fresno. Others were in small cities or large towns, like Abilene, Texas, and Meridian, Mississippi. I loaded the data for each city into a popular spreadsheet and made graphs of the monthly temperature versus time. I included a moving average to see what trends were apparent, if any, then added a linear best-fit trend line. The results were so fascinating that I uploaded all the graphs onto my blog, with some commentary. What I found confirmed what I had suspected all along. CO2 cannot do what the scientists claim it does.
One possibility that explains the heating versus cooling or no trend is what I learned was called the Urban Heat Island effect, or UHI. At first I thought this referred to the University of Hawaii until I finally found what the acronym spelled out. UHI is a phenomenon that causes cities, or large urban areas, to be hotter during the day, and warmer during the night, compared to more rural areas nearby. The UHI effect is small for small cities, but grows larger for large cities. The UHI is due to several factors, including expanses of asphalt and concrete paving, stone or brick or glass-and-steel buildings, great consumption of electricity to heat or cool the buildings, industrial heat from factories and other heavy industries, and large numbers of cars, trucks, buses, and airplanes that consume great quantities of fossil fuel.
First-part B, Sierra Nevada snowpack and snow-water-equivalent (SWE) have not changed significantly in almost 100 years. Dr. John Christy of University of Alabama, Huntsville, published a paper on this in 2010. His data ended in 2009. Since then, there have been near-record snowfalls in the Sierras. His key graph is shown below, normalized to show deviation from the average. From his paper, HL refers to a key snow measuring station, Huntington Lake. The paper is at this link.