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Chemistry.
Each carbon atom combines with two atoms of oxygen.
https://www.fueleconomy.gov/feg/contentIncludes/co2_inc.htm
Generating electrical energy from carbon_di_oxide
- Thread starter Rohaib azhar
- Start date
Each carbon atom combines with two atoms of oxygen.
https://www.fueleconomy.gov/feg/contentIncludes/co2_inc.htm
Remember your high school chemistry?? C + O2 = CO2 .... substituting Atomic Weights .... 12 + 32 = 44 ...
That means 12 Kg of carbon burns with 32 Kg of Oxygen and produces 44 Kg of Carbon dioxide ...
Gas/ Diesel is hydrocarbon , burns to water and carbon dioxide ... so 5 Kg producing 10 Kg CO2 sounds about right ...
The biosphere is starved of CO2 ... some commercial greenhouses pipe in CO2 to get reasonable growth rates ...
As custodians of the planet we should be trying to Increase CO2 , all plant life would flourish , ocean algae would increase resulting in a great increase in all fish and whale numbers ...
You can undoubtedly see your own disconnect in that rhetorical question. My simple answer is that it need not be human activities. Now that that's settled, let's ask! What occurence has noticeably contributed heat to our global heat mass over the observed and questioned period of time? Hmmmm,,,, it appears that the geothermal events have in fact been typical enough to fall within our global averages for such periods of time! There must be something else. I certainly have my suspicions,,, but none you'd ever go for, so I'll not even mention them!
The ocean is a buffer for CO2. When the acidity of the ocean rises that is an indication that the ocean can no longer act as a CO2 buffer.
Increased acidity in the ocean kills corals and marine life and the whole marine food chain.
Of course, they all have no integrity and are lying so they can keep their job.
But that makes little sense.
So you are saying they were all hired so that they could generate an "imagined" climate crisis.
Or did the Chinese hire them since it's a Chinese hoax according to our esteemed President.
Ah, I so love you conspiracy theorists.
For the first billion or so years of its existence, Earth had an atmosphere of methane and CO2 -- it was a true greenhouse, with a stable and much warmer average temperature. Anaerobic life thrived. Then the oxygen holocaust happened: cyanobacteria figured out photosynthesis, using energy from the sun to produce energy-storing carbohydrates from water and CO2, leaving a waste product of free oxygen. This was an enormously successful energy strategy, and it flooded Earth's atmosphere with O2. Cyanobacteria consumed the CO2, the methane was oxidized, and soon Earth's greenhouse atmosphere was gone.
Earth became an icehouse, much colder and with much greater climate variance, with long cycles of warming and cooling trends. This is the dynamical system into which warm-blooded animals evolved, and for hundreds of millions of years Earth's temperature has been waxing toward and waning away from 0° C. The dinosaurs lived in a much warmer Earth than we do. Currently, and for the past 2 million years or so, we've been in an ice age. The last glacial period -- when most of Europe and all of Canada was under ice -- ended only some 10,000 years ago.
We are in a warming trend, almost certainly augmented by CO2 released from burning fossil fuels. How long it will last and how hot it will get is impossible to predict (we have a hard enough time predicting the weather next week). But we know that it will get warmer, and then, eventually, it will get colder -- much colder -- again. And though we can't say for sure how much of an effect humanity has on the trend, the rational and prudent thing to do is to seek more efficient forms of energy and move away from fossil fuels, a move that will have far-reaching benefits beyond our impact on the climate.
In any case, climate change is a consequence of Earth's dynamics. Whatever the effect of humanity, the climate will change whether we like it or not. I, for one, am very glad to be living during a warming trend; the alternative -- one that humanity will one day have to face -- is far worse.
Earth became an icehouse, much colder and with much greater climate variance, with long cycles of warming and cooling trends. This is the dynamical system into which warm-blooded animals evolved, and for hundreds of millions of years Earth's temperature has been waxing toward and waning away from 0° C. The dinosaurs lived in a much warmer Earth than we do. Currently, and for the past 2 million years or so, we've been in an ice age. The last glacial period -- when most of Europe and all of Canada was under ice -- ended only some 10,000 years ago.
We are in a warming trend, almost certainly augmented by CO2 released from burning fossil fuels. How long it will last and how hot it will get is impossible to predict (we have a hard enough time predicting the weather next week). But we know that it will get warmer, and then, eventually, it will get colder -- much colder -- again. And though we can't say for sure how much of an effect humanity has on the trend, the rational and prudent thing to do is to seek more efficient forms of energy and move away from fossil fuels, a move that will have far-reaching benefits beyond our impact on the climate.
In any case, climate change is a consequence of Earth's dynamics. Whatever the effect of humanity, the climate will change whether we like it or not. I, for one, am very glad to be living during a warming trend; the alternative -- one that humanity will one day have to face -- is far worse.
Simple -- where do you think the two oxygen atoms come from that combined with the single carbon atom to make the CO2. Hint, they don't come the fuel.
OK sort of figured that. But still doesn't seem possible to get to 22 pounds. No one has figured a way to separate the carbon atom back from the oxygen on the engine? It would it require too much energy?
It would require the same amount of energy to separate the C and O2 as was obtained from the combustion of that C with the O2. It's a break even (- losses) proposition.
Let's run the numbers.
The average chemical formula for diesel fuel is C12H24. So, mass-wise, it is about 86% carbon. For each 12 mass-units of carbon burned, it produces about 44 mass-units of CO2 (assuming complete combustion). Diesel is about 6.94 lb/gal, so right about 5.97 lb of carbon, so that works out to 21.9 lb of CO2.
Of course it would -- you got the energy out of the diesel based on the difference between the energy of the carbon not being attached to the oxygen and being attached. So if you pull it back off, you have to spend just as much energy (actually, quite a bit more thanks to the second law of thermodynamics) than you got from burning it.
The error bars get bigger the farther we go back, but we can say that the first ice age occurred within 50 million years of the oxygen holocaust. I think most would agree, however, that Earth started icing much quicker, on the order of thousands of years after cyanobacteria started doing their thing.
The Cause and Effect section in the Wikipedia article on the first ice age has a nice, short explanation of the oscillatory warming/cooling dynamics of ice ages: https://en.wikipedia.org/wiki/Huronian_glaciation
The earth was also a lot warmer and consistently temperate when Saturn was the sun.
http://www.everythingselectric.com/saturn-sun/
Sounds like babblescience, to me.
Isn't that the topic here?
Joking mostly, but climate predictions and stuff that happened multi millions of years ago, is also. I couldn't resist.
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