Alan Caron addressed climate change in his Jan. 22 Maine Sunday Telegram column, declaring “we” are “ill-informed.” He sees fossil fuel burning over the last 100 years as the major culprit.

Evidence is that 2016 was the warmest year on record, yet the increase over 2015 was 0.04 degrees Celsius (0.072 degrees Fahrenheit). The years 2015 and 2016 were significantly affected by the El Nino Pacific trade winds, which spike temperatures beyond normal activity. Temperatures were already falling back to 2014 levels by the end of 2016; much as a strong El Nino did in 1998.

Honest scientists will tell you that data and theories in many climate models are manipulated to produce desired results.

The U.N. Intergovernmental Panel on Climate Change, using flawed computer projections, predicted surface temperatures would increase by 0.2 degrees Celsius on average per decade in the early 21st century. But during the first 15 years of this new century, the annual increase was closer to 0.05 degrees Celsius.

Forty percent of this past century’s 1-degree Celsius temperature increase occurred between 1910 and 1945 but accounted for only 10 percent of the CO2 increase in the 1900s. Variations in the solar magnetic field and cosmic rays significantly affect climate; cloud cover, atmospheric water vapor and internal climate oscillations influence temperature, yet climate models don’t even attempt to include their impact.

A major detail not mentioned is that ice samples confirm temperature changes preceded atmospheric CO2 changes by as much as several hundred years, or have had no direct correlation at all for long periods.

Factual science and history confirm our planet warms and cools over cycles varying from hundreds to thousands of years, but the science behind these cycles is not simplistically centered in CO2 levels.

If you want to more clearly understand why “we” are ill-informed, read “Why Scientists Disagree About Global Warming,” by Craig D. Idso, Ph.D., Robert M. Carter, Ph.D., and S. Fred Singer, Ph.D.

Brad Kaake

Hollis Center