https://wattsupwiththat.com/2022/11/03/the-dangers-of-low-atmospheric-co2-concentrations/
By Craig D. Idso — November 1, 2022
Thus, CO2 literally is the “food” that sustains essentially all plants (and animals who consume plants, including humans) on the face of the Earth. And when that food supply is diminished, nature begins to diminish.
In my last post I shared the results of research findings demonstrating that rising atmospheric CO2 levels represent no current direct threat to human health and/or cognitive performance and decision making. Further, I explained that they present no realistic future threat either; for CO2 levels would need to increase some 36 times above the present concentration before they would even begin to pose a mild health concern.
But what about low CO2 concentrations? Might they pose a threat to humanity? In short, yes. The lower the CO2 concentration, the greater the risk. This certainly applies to net reductions in PPM, but it also applies to reductions in CO2 from government climate policies against market preferences for mineral energies, natural gas, coal, and oil. The more CO2 the better, in other words.
Explanation
Carbon dioxide is the building block of nature. It is the primary raw material utilized by plants during the process of photosynthesis to build and construct their tissues. Thus, CO2 literally is the “food” that sustains essentially all plants (and animals who consume plants, including humans) on the face of the Earth. And when that food supply is diminished, nature begins to diminish.
Consider, for example, the work of Faltein et al. (2020), who examined the impact of low levels of CO2 (relative to present, ambient CO2 air) on African wood-sorrel (Oxakis pes-caprae). O. pes-caprae was a key carbohydrate source for humans during the Middle Pleistocene, being regularly harvested by human gatherers for its edible underground storage organs (USOs).
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Mike Maguire
November 3, 2022 9:51 am
Humans helped rescue the planet from CO2 approaching a dangerously low/near starvation level for life.
That’s why the planet has been massively greening up from beneficial CO2 fertilization of plants/crops.
You can make up political decrees that state CO2=pollution for self serving agenda but you can’t repeal the physical laws of science and nature.
Photosynthesis still rules and always will.
Death by Greening:
https://www.marketforum.com/forum/topic/69258/
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Mike Maguire
Reply to Mike Maguire
November 3, 2022 10:38 am
Optimal CO2 for life more than double current level:
https://www.marketforum.com/forum/topic/62784/
https://www.marketforum.com/forum/topic/62784/#90270
Figure 1. Relation between CO2 concentration and rate of plant growth. Source: Roger H. Thayer, Eco Enterprises, hydrofarm.com. Redrawn by Vince Giannotti.
Previous article by Dr. Idso on this topic:
By Craig D. Idso -- October 3, 2022
https://www.masterresource.org/carbon-dioxide/co2-concentrations-no-health-threat/
“… breathe easy. Atmospheric CO2 is not causing, nor will it ever cause, and direct threat to your health or cognitive performance.”
Almost all trace elements and compounds, even beneficial ones, can be poisonous if ingested or inhaled in large enough concentrations. So, what about carbon dioxide (CO2)? Do we have to worry about any deleterious health effects as its atmospheric concentration continues to climb?
As an answer to the above questions, consider the work of the following four research teams, two of which focused on human physiological responses to elevated levels of CO2 and two of which focused on human cognitive responses.
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Mike Maguire
November 3, 2022 11:24 pm
Another, even more extreme news article shown below that we’ve seen copied before here that illustrates how far off the extreme predictions have been.
The date of that article was over 33 years ago. However, if you took off the date and published it in tomorrow’s paper as current news, nobody would be able to tell.
Same type of busted climate crisis scare verbiage.
United Nations Predicts Disaster if Global Warming Not Checked
Associated Press – Jun 29, 1989
“A senior UN environmental official says entire nations could be wiped off the face of the Earth by rising sea levels if the global warming trend is not reversed by the year 2000 Coastal flooding and crop failures would create an exodus of ‘eco- refugees,’ threatening political chaos, said Noel Brown, director of the New York office of the UN Environment Program, or UNEP He said governments have a 10-year window of opportunity to solve the greenhouse effect before it goes beyond human control…”
“As the warming melts polar icecaps, ocean levels will rise by up to three feet, enough to cover the Maldives and other flat island nations, Brown told The Associated Press in an interview on Wednesday Coastal regions will be inundated; one-sixth of Bangladesh could be flooded, displacing a fourth of its 90 million people A fifth of Egypt’s arable land in the Nile Delta would be flooded, cutting off its food supply, according to a joint UNEP and US Environmental Protection Agency study…”
“Ecological refugees will become a major concern, and what’s worse is you may find that people can move to drier ground, but the soils and the natural resources may not support life Africa doesn’t have to worry about land, but would you want to live in the Sahara?…”
“He said even the most conservative scientists ‘already tell us there’s nothing we can do now to stop a change’ of about 3 degrees ‘Anything beyond that, and we have to start thinking about the significant rise of the sea levels we can expect more ferocious storms, hurricanes, wind shear, dust erosion’…”
