411 How much carbon dioxide is in the atmosphere of our "sister planet" Venus?
Venus has an atmosphere 92 times as thick as the Earth's atmosphere, and its composition is 96.5% carbon dioxide. So how much total carbon dioxide is that. We know our planet's atmosphere quite well, and at 400 parts per million of carbon dioxide in this atmosphere equates to 800 gigatonnes. Therefore, since Venus is slightly smaller than our planets at only .81%, you take 800 X .81= 720 gigatonnes. Now times that by 2,412.5 (since 400 parts per million goes into 965,000 parts per million 2412.5 times) that equals 1,737,000 gigatonnes per atmosphere equivalent, then times that by 92 atmospheres =159,804,000 gigatonnes of total carbon dioxide in Venus atmosphere! Earth's total carbon dioxide load would then be slightly higher due to its larger size at around 190,166,760 gigatonnes. Alas and thankfully, the vast majority of Earth's carbon has been sequestrated underground and on its surface as mainly some type of rock! Limestone, marble, so many of the planet's sedimentary rocks were once life!
Venus's atmosphere can be considered a primordial atmosphere minus the lighter gases such as helium and hydrogen which much like Earth's atmosphere could not hold on to them with the gravitational forces that each planet has! Why is it still considered primordial if both Venus and the Earth are the same age? "Life" is the complete and only reason for the two planets' different atmospheres.
We hear so much about "evolution" when a more accurate usage term would be life's need for adaptation to ever so slowly changes in its surroundings due to all other life on the planet. Yes, some planet-wide major life-changing events are not life driven, Massive volcanic events that lasted for millions of years, asteroid impacts, possible massive sunspot activity could even have sterilized parts or much of the planet millions or billions of years ago, leaving little proof behind for archaeologist to find. But the overriding cause for the changes to the atmosphere of our planet is life itself and the sequestration of that life!
This is why the "plan" is the only way forward in repairing the planet for the long term! Remember of that 190,166,760 gigatonnes of carbon dioxide that was once available for life, there is now less than 50,000 gigatonnes for the whole planet life to be able to use! that is less than .00026% or another way of looking at that is that .99974 of all carbon dioxide that was once available for life is hidden away from that very life!
Someone asked me if the reason that Venus's Atmosphere was so thick was because of its 900-degree temperature which would have forced trapped carbon dioxide out of the planet's crust thereby releasing it into the atmosphere just as volcanoes do on Earth. When any good size planet is first formed the internal heat is caused by gravity and the resulting pressure is very high and forces out gas's into the atmosphere of the planet, while on a planet that has carbon-based life on it as our's does it is the sequestration of carbon into rocks or just buried deep enough. The main way that it becomes available as carbon dioxide back into the atmosphere is when that material by tectonic plate movement comes into contact with a high enough heat source to be injected back into the atmosphere as happens with volcanic eruptions!
As always I can be reached at the following, phone 402-890-7946, G-mail daniel.kadavy212@gmail.com, or to read more go to https://lifecycleofaplanet.blogspot.com, Thank you Dan
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