The recent exchange of letters entitled "No Need to Panic About Global Warming" and "Check With Climate Scientists for Views on Climate" are, either implicitly or explicitly, appeals to politicians based mainly on arguments from "Authority". It is tragic that what should have been an objective evaluation of the available data by independent scientists, has instead degenerated into a partisan political diatribe.
Weather and Climate are controlled by natural laws on a scale that is enormous compared to the scale of human activity. Those natural laws engender forces and motions in the Earth's atmosphere, its oceans, and its surface that are beyond human control. Weather and Climate existed long before humans appeared on Earth, and they will continue to exist in the same way long after we are gone, either individually or collectively as the human race.
Those forces and motions are driven by the following phenomenon. First, there is the motion of the Earth relative to the Sun: the periodic changes in its elliptical orbit, the rotation of the Earth about its axis, the periodic changes in the tilt of that axis, and the periodic precession of that axis. Second, there is the variation in Solar activity which causes changes in the amount of radiant energy that reaches the Earth and also causes variations in the Cosmic Ray input into its atmosphere, which effect the Earth's cloudiness. Third, there is the distribution of land and water on the Earth's surface which controls the temperature distribution of the atmosphere, the availability of moisture, monsoon effects, and the paths and intensities of hurricanes, typhoons, and other storms. Fourth, there is the topography of the Earth's land mass which causes copious precipitation on the windward side of mountains and aridity on the leeward side. Fifth, there are the motions within the Earth's oceans that determine moisture availability and its surface temperature distribution (El Nino and La Nina cycles).
The determinant of weather is mainly water in all of its forms: as vapor in the atmosphere; in its heat transport by evaporation and condensation, as the enormous circulating mass of liquid ocean whose heat capacity and mass/energy transport dominate the motions of our atmosphere and the precipitation from it, and finally as cloud, snow, and ice cover which influence the radiative balance between the Sun, the Earth, and free Space. In comparison, the human emission of CO2 is totally insignificant for the Earth's weather and climate and there is not one iota of reliable evidence that proves otherwise.
This was all learned by me when I served as a research and forecasting Meteorologist while on active duty in the U. S. Navy. That was long before the ersatz field now called "Climate Science" was fabricated out of thin air for the main purpose of promoting the false theory that human CO2 emission was causing "global warming/climate change/extreme weather phenomena." Note that the theory has become a moving target over the last decade, but it is still relatively easy to track and shoot down.
Martin Hertzberg, Ph. D., Stanford, 1959
Copper Mountain, Colorado
co-author of "Slaying the Sky Dragon - Death of the Greenhouse Gas Theory", Stairway Press (2011)