Alan Willoughby's letter of Feb. 24 is a refreshing statement of the truth of the present scam.
At one time scientists and science represented standards of absolute honesty and integrity. People, today, with hidden agendas have used this public trust to further their not-so-honest aims.
A simple way to test the fact that CO2 has very little greenhouse effect, is to consider the day/night temperatures in very dry desert areas. During the day the sun beats down resulting in very high surface temperatures but within a very short time after sunset the temperature drops to near zero. Why? Because there is no greenhouse ' blanket” to keep the heat from coming in or from going out. Why? Because there is no major greenhouse gas, which is water vapour.The CO2 content is just the same as anywhere else but its effect is very, very, small.

John Mills, Matamata.