Very gentle and polite rebuttal here:
Letter to the editor of Practical Winery & Vineyard Journal
by Robert P. Smith, Ph.D., P.E.
As a long-term subscriber to Practical Winery & Vineyard Journal I have always looked forward to the regular features of Dr. Richard Smart. Sunlight Into Wine was a landmark contribution to viticulture.
Nevertheless, I was surprised and disappointed to read his article “Reducing CO2 – the REAL pollutant” in the Spring 2011 edition. As an environmental scientist and engineer, I am particularly attuned to the use of the word “pollutant.” I have spent my professional career dealing with real pollution, so when I see CO2 – an essential and beneficial substance in our environment – so characterized, I am compelled to respond.
As we both know – or should know – carbon dioxide is plant food. Other nutrients are needed, but CO2 is a plant’s only food, it cannot survive without it. Carbon dioxide – replenished through the carbon cycle – is the source of the carbon utilized to produce carbohydrates through photosynthesis. Without plants of course, we animals could not survive. (SPPI)
24response, you has to show them all we are watching their propaganda 12/7.