cancel2 2022
Canceled
You would think that with all the smokers on here they would love CO2 more than they do.
By Joseph D’Aleo, CCM
The two teams going to the superbowls coming from the two states that have legalized marijuana. I will avoid speculating a possible role of that in bringing that outcome, I will make the point that they can thank CO2 for increasing photosynthesis, limiting the transpiration (moisture loss through pores on the leaves) and through that limiting the water usage needs for Cannabis.
A paper supported by the National Institute for Health (NIH) published in Physiol. Mol. Biol. Plants, 14(4) October, 2008, Photosynthetic response of Cannabis sativa L. to variations in photosynthetic photon flux densities, temperature and CO2 conditions by Suman Chandra, Hemant Lata, Ikhlas A. Khan and Mahmoud A. Elsohly tells us the story. From the abstract we see:
Effect of different photosynthetic photon flux densities (0, 500, 1000, 1500 and 2000 μmol m-2s-1), temperatures (20, 25, 30, 35 and 40 degrees C) and CO2 concentrations (250, 350, 450, 550, 650 and 750 μmol mol-1) on gas and water vapour exchange characteristics of Cannabis sativa L. were studied to determine the suitable and efficient environmental conditions for its indoor mass cultivation for pharmaceutical uses.
Enlarged
An average of 30 to 33 % increase in PN photosynthesis productivity of C3 plants with doubling atmospheric CO2 concentration has been already reported by Kimball 1983a, b; 1986; Idso and Idso 1994; Bazzaz and Gabutt, 1988; Cure and Acock, 1986. In Cannibas sativa, a doubling of CO2 concentration (750 μmol mol-1) suppressed E 29 % stimulated PN by 50% as compared to ambient CO2 concentration. Doubling CO2 level had a significant effect on all these parameters.
We may gain more converts into the battle against the carbonistas if we educate the public in these blue green states on this fact!!!!
Note:
The New York Times (1/23/14) reports: “The bottom line is that the policies will increase the cost of carbon and electricity,” said Roger Bezdek, an economist who produced a report for the coal lobby that was released this week. “Even the most conservative estimates peg the social benefit of carbon-based fuels as 50 times greater than its supposed social cost.” Some tycoons are no longer listening. At the Swiss resort of Davos, corporate leaders and politicians gathered for the annual four-day World Economic Forum will devote all of Friday to panels and talks on the threat of climate change. The emphasis will be less about saving polar bears and more about promoting economic self-interest.”
http://icecap.us/
By Joseph D’Aleo, CCM
The two teams going to the superbowls coming from the two states that have legalized marijuana. I will avoid speculating a possible role of that in bringing that outcome, I will make the point that they can thank CO2 for increasing photosynthesis, limiting the transpiration (moisture loss through pores on the leaves) and through that limiting the water usage needs for Cannabis.
A paper supported by the National Institute for Health (NIH) published in Physiol. Mol. Biol. Plants, 14(4) October, 2008, Photosynthetic response of Cannabis sativa L. to variations in photosynthetic photon flux densities, temperature and CO2 conditions by Suman Chandra, Hemant Lata, Ikhlas A. Khan and Mahmoud A. Elsohly tells us the story. From the abstract we see:
Effect of different photosynthetic photon flux densities (0, 500, 1000, 1500 and 2000 μmol m-2s-1), temperatures (20, 25, 30, 35 and 40 degrees C) and CO2 concentrations (250, 350, 450, 550, 650 and 750 μmol mol-1) on gas and water vapour exchange characteristics of Cannabis sativa L. were studied to determine the suitable and efficient environmental conditions for its indoor mass cultivation for pharmaceutical uses.
Enlarged
An average of 30 to 33 % increase in PN photosynthesis productivity of C3 plants with doubling atmospheric CO2 concentration has been already reported by Kimball 1983a, b; 1986; Idso and Idso 1994; Bazzaz and Gabutt, 1988; Cure and Acock, 1986. In Cannibas sativa, a doubling of CO2 concentration (750 μmol mol-1) suppressed E 29 % stimulated PN by 50% as compared to ambient CO2 concentration. Doubling CO2 level had a significant effect on all these parameters.
We may gain more converts into the battle against the carbonistas if we educate the public in these blue green states on this fact!!!!
Note:
The New York Times (1/23/14) reports: “The bottom line is that the policies will increase the cost of carbon and electricity,” said Roger Bezdek, an economist who produced a report for the coal lobby that was released this week. “Even the most conservative estimates peg the social benefit of carbon-based fuels as 50 times greater than its supposed social cost.” Some tycoons are no longer listening. At the Swiss resort of Davos, corporate leaders and politicians gathered for the annual four-day World Economic Forum will devote all of Friday to panels and talks on the threat of climate change. The emphasis will be less about saving polar bears and more about promoting economic self-interest.”
http://icecap.us/
