Comments on: CO2 Page

By: Phil's Dad

Phil's Dad — Wed, 19 Aug 2020 03:25:49 +0000

In reply to Darren Potter. That I would like to see

By: John Shewchuk

John Shewchuk — Mon, 04 May 2020 14:34:11 +0000

Do climate models use a single CO2 value to populate its global grid (for each vertical level), or do the models use regional CO2 values?

By: Anthony J Varrichio

Anthony J Varrichio — Thu, 03 Oct 2019 14:53:28 +0000

CO2 absorbs Infrared Radiation we all agree. What percent of this is emitted back to earth ? The IR Causes the CO2 molecules to vibrate and heat up, but doesn\’t that constitue work and the dissipation of heat ? how does it emit back to a warmer (earth ) surface when heat can only transfer from hot to cold ?

By: Solar Energy

Solar Energy — Wed, 16 Jan 2019 11:38:44 +0000

In reply to magnetic energy. Hi Magnetic Energy, I am Solar Energy. Nice To Meet You "Again", Seems Like We Are Heading In The Same Direction LOL. See You Later In The Comment Section Of Another Post. Byeeeee.

By: magnetic energy

magnetic energy — Wed, 19 Dec 2018 00:08:22 +0000

Fossil fuels like coal and oil supplied us using the essential
resource to generate our own electricity while using use of generators in power plants.
As energy prices increase and lots of homeowners be a little more alert to their carbon footprint, solar panel technology panels have received renewed interest among consumers.
However although many alternative energy options only really suitable for giant scale generation, wind turbines
have become successful when reduced to a size well
suited for home wind power and are creating a substantial contribution for a
household’s electricity requirements.

By: Jan Kjetil Andersen

Jan Kjetil Andersen — Thu, 18 Jan 2018 18:47:12 +0000

In reply to J Moscati.

Good question, and it has a precise answer:
1 Gt Carbon= 1/2.12= 0.47ppm CO2
1 tonne Carbon=3.66 tonne CO2
1 GtCO2 emission =0.127 PPM of CO2 rise in atmosphere
https://onlineconversion.vbulletin.net/forum/main-forums/convert-and-calculate/11072-convert-gtco2-to-ppm-rise-in-atmosphere
That means that the 10 to 12 GT Carbon would have given 4.7 to 5.6 ppm CO2 rise in the atmosphere if all had stayed there, but since more than 50% goes to the ocean and plants, we only have about 2 ppm rise in the atmosphere.

By: harrytodd

harrytodd — Thu, 21 Sep 2017 21:25:33 +0000

https://harrytodd.org/2015/10/28/chapter-6/

By: harrytodd

harrytodd — Fri, 01 Sep 2017 11:25:07 +0000

What caused the periodic sharp increases in CO2 and temperature in prehistoric times? A new theory has been investigated at this website:
https://www.harrytodd.org

By: J Moscati

J Moscati — Wed, 08 Mar 2017 20:05:20 +0000

Is there an accepted conversion factor for atmospheric ppm CO2 and metric tons C? We routinely see emmisions measured in metric tons, and changes in atmosheric CO2 expressed in ppm, but no explanation of how much carbon, by mass, is represented by a given atmospheric concentration. Without this conversion its impossible to tell if the roughly 8k to 10k metric tons per year from fossil fuels accounts for all of the annual increase in CO2, or only a fraction?

By: bitsandatomsblog

bitsandatomsblog — Tue, 15 Nov 2016 18:57:55 +0000

On further review not sure if my graph above is accurate. The the RCP’s are based on total greenhouse gases not just CO2. I have not yet seen any about how this is calculated.

By: Nelson Smith

Nelson Smith — Sun, 23 Oct 2016 14:52:08 +0000

Looks like CO2 concentrations in 2020 will be below all predictions by IPCC. Hat tip: US frackers
https://twitter.com/NelsonDaleSmith/status/790201772186886145

By: Mark

Mark — Mon, 22 Feb 2016 08:06:52 +0000

Uggh, human emissions which are apparently responsible for the consistent increase.. have never matched CO2 growth.
The very equations relate surface emissions to CO2 growth surely.. yet CO2 growth does what it does regardless of our emissions.
We cant be a driver yet not affect CO2 growth with huge increases in emissions?
Of course the increase in CO2 being blamed on humans is an assumption with no empirical support, how could there be if no one actually can monitor CO2.
The budget balance of nature.. if on balance, means we drive increases, yet CO2 growth has never matched our growing emissions.
Strange, that this whole mess got so much traction based purely on an assumption based on a very loose short term correlation

By: Mariwarcwm

Mariwarcwm — Tue, 01 Sep 2015 09:24:23 +0000

In reply to TonyN. I don't know about atmospheric pressure, but the very generous amount of CO2 would certainly have supplied abundant plant food, and therefore the size of the animals that grazed on them. It was also a warmer wetter world with no ice at the poles. I have never seen anyone comment on that connection, nor on the likelyhood that a dropping of the amount of CO2 would lead to smaller plants and animals. It seems obvious to me.

By: TonyN

TonyN — Sat, 29 Aug 2015 14:34:49 +0000

In reply to Mariwarcwm. Could it be, that the earth's atmospheric pressure was much higher than it is today? The consequences for all living things would be profound.

By: Gregory Lawn

Gregory Lawn — Fri, 26 Jun 2015 21:12:37 +0000

What of the argument by AGW advocates that the release of CO2 by human activity exceeds the increase CO2 in the past century, therefore the entire recent increase is due to man? I am suspicious of the logic in this claim.

By: Ali Bertarian

Ali Bertarian — Sat, 25 Apr 2015 12:01:17 +0000

In reply to Darren Potter. Do you have sources for the 95% H2O, & 3.62% CO2 figures that pro-AGW people would accept?

By: Mariwarcwm

Mariwarcwm — Wed, 14 Jan 2015 19:31:08 +0000

Watching Jaws iii earlier this week, I wondered what CO2 levels were during the Dinosaur era as those animals would have needed a lot of vegetation to keep their vast bodies nourished. The herbivores would need huge plants to eat and would in turn feed vast herbivores. I was pleased to find your charts, and discover that CO2 levels during their existence was between 1,570ppm and 520ppm roughly, but dropped below 500ppm at about the time of their disappearance. There must have been a reduction in scale of all life, all life being dependent on CO2. Life continued on a smaller scale and will no doubt do so again?

By: Slywolfe

Slywolfe — Sun, 04 Jan 2015 16:59:01 +0000

In reply to Slywolfe. "respiration"

By: Slywolfe

Slywolfe — Sun, 04 Jan 2015 16:58:03 +0000

Darren Potter
August 2, 2014 at 8:37 pm
Bernd Niessen – “How many percent of the annual co2 is caused by humans?”
The following may answer your question:
” Man’s CO2 output per year is less than three percent of the totals released by the combination of all natural forces and man — about 803 billion tons.”
“Man-made carbon dioxide emissions throughout human history constitute less than 0.00022 percent of the total naturally emitted from the mantle of the earth during geological history.”
Man-made CO2 accounts for 0.12% to Green House Gas effect, with Mother Nature accounts for 3.50%. Water Vapor (both man and mother nature) accounts for 95.00%.

How much of atmospheric CO2 & water vapor is from human resperation?

By: rogerknights

rogerknights — Wed, 27 Aug 2014 15:38:40 +0000

I suggest including charts of methane too.