An article by James Pero at Daily Mail confirms suspicions about muddled thinking regarding global warming/climate change. Is carbon dioxide making it harder to THINK straight? Excerpts in italics with my comments and images.
Rising CO2 levels may hinder cognitive function and could decrease decision-making efficiency by 50 PERCENT in 2100, study says.
- Carbon emissions may have a drastic impact on cognitive function
- Researchers say that CO2 may decrease classroom decision making
- It could reduce decision making by as much as 50 percent in 2100, they say
Rational thought may eventually become a victim of climate change according to a new study.
[Well, media announcements and studies like this one show rationality is already greatly compromised.]
Research presented by scientists at the annual American Geophysical Union and submitted to the journal GeoHealth suggests that increased CO2 may soon diminish humans’ capacity to think clearly.
The findings follow previous studies that show how indoor air pollution and poor ventilation can hinder people’s ability to perform mentally, including a study published last year from the University College London.
[Note the chart at the top showing that CO2 in the atmosphere is 410ppm (parts/per/million) , or 0.04%. Note also that health and safety regulations for buildings expect no harmful effects below 5000 ppm, which would be 10 times the present amount.]
‘Human cognitive performance declines with an increase in CO2’, the researchers wrote in the paper.
‘Direct impacts of CO2 emissions on human cognitive performance may be unavoidable.’
Those studies concluded that circulating air and regulating the amount of CO2 trapped in a room can help mitigate the effects of too much CO2, but new research suggests ventilation in a climate change-addled future might just make matters worse.
[This diagram shows the ratio of human to natural carbon dioxide in the atmosphere equals the ratio of their inflows, independent of residence time.
The amount of CO2 flowing from humans into the atmosphere is miniscule (about 4%) compared to CO2 flowing from the oceans and biosphere (96%). Thus the human component presently is 17ppm (or 0.002%). Eliminating our emissions entirely would have no discernable impact on the total amount. See Who to Blame for Rising CO2?]
It also used two different climate models – one that factors in reductions in CO2 and another that projects conditions if emissions continue unfettered.
In the model that factors in some emissions intervention, scientists say decision making in the classroom could decrease by 25 percent while a model without emissions mitigation could see a whopping 50 percent reduction.
Though previous studies have shown a correlation between brain function and CO2, not much is currently understood about why the gas affects our brains the way it does.
As noted by Gizmodo, a previous study on CO2’s correlation to brain function showed that an increase as little as 5 percent had reduces brain activity.
[Let’s see: A 5% increase in CO2 would be a leap from 0.041% to 0.043%, requiring some fine sensors to even detect it. Doubtful that brains are that sensitive to the gas itself, but obviously there is huge sensitivity to the idea of rising CO2.
OTOH plants have sensed and appreciated the increased CO2 as shown in the greening of the planet since 1982]
No current research has studied the kind of long-term exposure that will would result from rampant climate change.
As noted by researchers, however, all of the adverse effects of CO2 on mental performance can still be averted by making a concerted effort to lower emissions and stave off climate change.