The notion of man's use of CO2 as a possible driver of climate has been the subject of several recent Letters to the Editor in the Sun-News. Over geologic time. there has been 15 to 25 times more CO2 than current concentrations; the claim that this time we will reach a tipping point is alarmist, ludicrous, and totally without foundation.
CO2 is a colorless, odorless gas, and essential to life; to regard it as a pollutant is just wrong.
Let us deal with facts - not activism, alarmism, or hyperbole.
The polar bear population is more than 250,000 years old. We are in an interglacial period called the Holocene, a geological epoch now 18,000 years old into which human civilization dates entirely.