It made sense. Knowing that CO2 is a greenhouse gas and that our industrialized world is adding a large amount of it to the atmosphere on a yearly basis, I accepted the premise that this would cause global temperatures to rise. But one day about 7 years ago, I looked at the ubiquitous graph showing the “global” temperature of the last 150 years and noticed something odd. It was subtle, and as I found out later, disguised so that it would be overlooked.
There appeared to be a period of about 40 years between 1940 and 1980 where the global temperatures actually declined a bit. As a data analysis expert, I could not ignore that subtle hint and began to look into it a little more. Forty years is a long time, and while carbon dioxide concentrations were increasing exponentially over the same period, I could not overlook that this showed an unexpected shift in the correlation between global temperatures and CO2 concentrations. Thus I began to look into it a little further and here are some of the results 7 years later.
Before we begin, let’s establish what we know to be correct. The global average temperature has increased since the 1980’s. Since the 1980’s glaciers around the world are receding and the ice cap of the Arctic Ocean has lost ice since the 1980’s, especially during the summer months. The average global temperature for the last 10 years is approximately 0.35 degrees centigrade higher than it was during the 1980’s. The global warming community has exploited these facts to “prove” that human activity (aka burning of fossil fuels) is the cause of these increasing temperatures. But no direct scientific proof or data has been shown that link the current observations to human activity. The link is assumed to be simply a fact, with no need to investigate or discuss any scientific data.
Here are 10 of the many scientific problems with the assumption human activity is causing “global warming” or “climate change”:
1. Temperature records from around the world do not support the assumption that today’s temperatures are unusual.
The all-time high temperature record for the world was set in 1913, while the all-time cold temperature record was set in 1983. By continent, all but one set their all-time high temperature record more recently than their all-time cold temperature records. In the United States, which has more weather stations than any other location in the world, more cold temperature records by state were set more recently than hot temperature records. When the temperature records for each state were considered for each month of the year, a total of 600 data points (50 states x 12 months), again cold temperature records were set in far greater numbers more recently and hot temperature records were set longer ago. This is directly contradictory to what would be expected if global warming were real.
2. Satellite temperature data does not support the assumption that temperatures are rising rapidly:
Starting at the end of 1978, satellites began to collect temperature data from around the globe. For the next 20 years, until 1998, the global average temperature remained unchanged in direct contradiction to the earth-bound weather station data, which indicated “unprecedented” temperature increases. In 1998 there was a strong El Nino year with high temperatures, which returned to pre-1998 levels until 2001. In 2001 there was a sudden jump in the global temperature of about 0.3 degrees centigrade which then remained at about that level for the next 14 years, with a very slight overall decrease in the global temperatures during that time.
3. Current temperatures are always compared to the temperatures of the 1980’s, but for many parts of the world the 1980’s was the coldest decade of the last 100+ years:
If the current temperatures are compared to those of the 1930’s one would find nothing remarkable. For many places around the world, the 1930’s were the warmest decade of the last 100 years, including those found in Greenland. Comparing today’s temperatures to the 1980’s is like comparing our summer temperatures to those in April, rather than those of last summer. It is obvious why the global warming community does this, and very misleading (or deceiving).
4. The world experienced a significant cooling trend between 1940 and 1980:
Many places around the world experienced a quite significant and persistent cooling trend to the point where scientists began to wonder if the world was beginning to slide into a new ice age period. For example, Greenland experienced some of the coldest years in 120 years during the 1980’s, as was the case in many other places around the world. During that same 40-year period, the CO2 levels around the world increased by 17%, which is a very significant increase. If global temperatures decreased by such a significant amount over 40 years while atmospheric CO2 increased by such a large amount we can only reach two conclusions: 1. There must be a weak correlation, at best, between atmospheric CO2 and global temperatures, 2. There must be stronger factors driving climate and temperature than atmospheric CO2.
5. Urban heat island effect skews the temperature data of a significant number of weather stations:
It has been shown that nighttime temperatures recorded by many weather stations have been artificially raised by the expulsion of radiant heat collected and stored during the daytime by concrete and brick structures such as houses, buildings, roads, and also cars. Since land area of cities and large towns containing these weather stations only make up a very small fraction of the total land area, this influence on global average temperature data is significant. Since the daytime and nighttime temperatures are combined to form an average, these artificially-raised nighttime temperatures skew the average data. When one only looks at daytime temperatures only from larger urban areas, the “drastic global warming” is no longer visible. (This can also be seen when looking at nearby rural area weather station data, which is more indicative of the true climate of that area).
