Partick Moore began this public discussion with a email group on April 22. We have moved our email discussion to this post. We show the previous emails in chronological order through April 30. Now anyone interested can post comments to continue the discussion. – Ed
April 22, 2017
Patrick Moore wrote:
I am sorry to see this fraudulent argument continuing. Humans are responsible for most of the CO2 increase since large-scale use of fossil fuel began. Until then CO2 had been slowly declining for 140 million years, from 2,000-2,500 ppm down to 180 ppm at the height if the last glaciation 18,000 yrs ago. Since then it had rebounded to 280 ppm due to outgassing from the oceans as they warmed into the Holocene interglacial. In a bit more than 100 years human emissions have bumped it back up to 400+ ppm, restoring a balance the the global carbon cycle.
The error (falsehood) in Salsby et al’s position is that the CO from burning fossil fuels is an addition to the carbon in the carbon cycle. The annual cycling of carbon from plants growing in the spring to dying in the fall is already in the cycle. This is like confusing a balance sheet (the carbon already in the cycle) with a cash flow statement (profit and loss from the balance). The additional carbon added each year from fossil fuels represent a profit and therefore an increase in the balance. Calculated in this way the vast majority of new carbon going into the atmosphere as CO2 is from fossil fuel combustion and cement production, with other minor components. Very little new CO2 is added from natural sources. The US Geological Survey estimates that volcanic activity adds less than 1% of human emissions.
There are two things wrong with this mistake. First it is patently false, second it kind of admits that if humans were responsible it would be a bad thing. Human CO2 emissions are entirely beneficial and in fact have saved life on Earth from any untimely demise due to declining CO2 which would eventually have dropped to levels that were below the threshold for plant survival.
April 24, 2017
Edwin Berry wrote:
It is one thing to have an opinion about a subject in science. All good scientists have opinions and are willing to participate in discussions that may show their opinions are wrong.
It is quite another thing to call scientific arguments you disagree with, “fraudulent.” Especially when you have not presented a credible scientific argument to show you are correct and those whom you call “fraudulent” are wrong. [Read more…]