100 years later, the Scientific American reversal on CO2

In 1920, Scientific American reported that the atmosphere was deficient in CO2, and that crop productivity could be greatly enhanced by introducing CO2 emissions from from smokestacks, and that earth was covered with luxuriant forests when CO2 levels were much higher.

Tony Heller
Real Climate Science
Sun, 04 Apr 2021

Scientific American Article


© Real Climate Science

Fertilizing the air with carbon dioxide to promote plant growth

ONE of the principal constituents making up the body of a plant is carbon, representing about one-half of its organic substance. The opinion that this carbon is derived from the soil has long been abandoned, modern investigation having shown atmospheric carbonic acid to be absorbed by means of the chlorophyll or green matter of the leaves and decomposed into its elements, the carbon, in conjunction with the root sap and atmospheric moisture, being worked into organic compounds.

Whereas atmospheric air at present is relatively poor in carbonic acid, of which it contains only about .03 per cent, at an early period in the development of our planet, when this was covered with the luxuriant forests our coal deposits are derived from, it comprised incomparably greater quantities of this gas. This fact suggested the idea of heightening the fertility of the soil by increasing its carbonic acid content and thus producing conditions resembling those of antediluvian ages.


Now they say –

Climate change’s negative effects on plants will likely outweigh any gains from elevated atmospheric carbon dioxide levels

In the 1920 article, they provide tens of millions of years of empirical evidence – luxuriant forests growing at much higher CO2 levels, but now they completely disregard the scientific method, throw all evidence out the window, and make nonsensical speculations based on climate models.


Martin comments: I suspect that the “demonisation” of CO2 is a plot to transport us back to a “little Ice Age”. Can’t grow your own crops, increased reliance on intensive farming and corporate greenhouse produce. By the way, the CO2 level in your average greenhouse is 1000 to1200ppm. What does that tell you?

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Martin Harris

I have a lovely partner and 3 very active youngsters. We live in the earthquake ravaged Eastern Suburbs of Christchurch, New Zealand. I began commenting/posting on Uncensored back in early 2012 looking for discussion and answers on the cause and agendas relating to our quakes. I have always maintained an interest in ancient mysteries, UFOs, hidden agendas, geoengineering and secret societies and keep a close eye on current world events. Since 2013 I have been an active member of theCONTrail.com community, being granted admin status and publishing many blogs and discussion threads. At this time I'm now helping out with admin and moderation duties here at Uncensored where my online "life" began.

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