"...Though carbon dioxide levels have varied widely over the 4.5 billion years of Earth's existence the trend is irrefutably downward. When taken as part of the grand sweep of Earth's history the current rise of atmospheric CO2 levels is not even noteworthy. The forces that have changed Earth's climate and atmospheric composition in the past continue to change it today and will do so until our planet dies. These natural forces are huge, titanic, beyond human comprehension and control.
In the face of such forces, mankind's power to significantly or permanently alter the environment is negligible. Those in government and regulatory agencies should think twice when they choose to call carbon dioxide a pollutant and attempt to regulate it as a toxic substance. Far from being a pollutant, CO2 is plant food and without plants there are no people. But then, politicians and alarmists are nothing if not short sighted, and human hubris knows no bounds....."
Doug L Hoffman