[[Not true. Man produces about 30 Gt of CO2 per year, easily determined by economic data]]
30 Gt is nothing compared to the volume of atmosphere- Nature supplies over 700 Gt
From that site I listed:
[[Total CO2 put out by humans every year:
27 gigatonnes.
Total CO2 put out by all other sources every year:
220 gigatonnes — Consumption of vegetation by animals & microbes
220 gigatonnes — Respiration by vegetation
332 gigatonnes — The oceans
772 gigatonnes — TOTAL from all other sources.
27/772 = 3.5%]]
[[But as I show in the diagram above, they are two-way.]]
Answer me this- if man’s CO2 is different, and isn’t ‘two way’ then how does ANY of it make it back to earth? a
Also you keep ignoring the facts that man’s contribution is just 0.0015% of the TOTAL ATMOSPHERE,
You also have ignored the fact that only a very tiny amount of escaping heat gets absorbed by that 0.0015%
You also ignore the fact that of that tiny amount that does actually get absorbed, only a much tinier amount actually makes it’s way back to earth via back radiation- MOST escapes out of atmosphere-
I’ll ask again- what percentage of escaping heat gets absorbed by man’s 0.0015%? .05%? .10%? 1.0%? 5%? 10%?
let’s assume 10% which works out to 0.00015000000000000001% escaping heat being absorbed by atmospheric CO2
Next question- of that 0.00015000000000000001%, how much actually gets back radiated In the right direction to make it’s way back to earth? 0.0015%? .05%? .10%? 1.0%? 5%? 10%?
Let’s be generous and assume 50% actually makes it’s way back towards earth- that works out to just 0.00007500000000000001% of the heat escaping earth making it’s way via back radiation, towards earth
You see where I’m going with this? It is such a small amount that it’s safe to say nearly ZERO heat gets back radiated due to man’s production of CO2 which amounts to only 0.0015% of the total atmosphere
In our last discussion on this issue, you also ignored these facts- so I’m not really interested in getting into a long drawn out discussion about the issue if the figures presented simply get ignored because these figures are devastating to the claim that ‘man is almost entirely responsible for global climate change’ as was just announced by the ‘consensus of scientists’ that you keep touting-
30 Gt a year is a substantial addition to the existing 700 Gt.
Answer me this- if mans CO2 is different, and isnt two way then how does ANY of it make it back to earth?
Man's and nature's CO2 is not any different in any way. Nor is "new" CO2 different from "old" CO2. It is just CO2. There was a rough equilibrium at 280ppm. We have added 120ppm to that to reach 400 ppm. We are adding more so it is rising 2-3ppm per year. But the thing is, nature is absorbing about 1/20 or 1/30 of that "extra" CO2 (above the rough equilibrium) each year. That is going into the oceans.
Also you keep ignoring the facts that mans contribution is just 0.0015% of the TOTAL ATMOSPHERE
That is not a fact at all. Without man we would be about 290 ppm (280 plus about 10 from the natural warming after the Little Ice Age). With man's contribution we are 400 ppm and rising. IOW mans's contribution is 0.012% (and rising).
Lets be generous and assume 50% actually makes its way back towards earth- that works out to just 0.00007500000000000001% of the heat escaping earth making its way via back radiation, towards earth
Start with the 0.012% of the atmosphere and trap only 2% extra of the escaping heat, send 50% of that back (the 50% number is a constant). The total energy sent to space from the earth's surface is about 10^22 Joules. If 1% of that is sent back to earth that is 10^20 Joules sent back to earth. That is roughly the same as the energy consumed by mankind in all forms (fossil, nuclear, etc). A nontrivial amount of energy and I used conservative numbers.
You see where Im going with this? It is such a small amount that its safe to say nearly ZERO heat gets back radiated due to mans production of CO2 which amounts to only 0.0015% of the total atmosphere
The number is 0.012% and it takes 0.015% CO2 to prevent earth from being mainly frozen. Also, obviously, most plants would be dead at 0.015% or below (CO2 starvation).
We are in a geologically unique period on earth where CO2 could go low enough to wipe out life. Instead we have increased it from 0.028% to 0.04% and rising, thus preventing any slide into an ice age and plant death. it is a fact we should be celebrating.