I had a simple insight in connection with the understanding of global warming, which you can read here:
If the Sun did not shine, the
Earth would be cooling and cold. However, the Sun is there and the Earth's
average temperature is about at equilibrium. Reaching the Earth, part of the
sunlight (visible or not) is reflected back to space, and part of it heats the
Earth so that the Earth's heat emission and heat absorption will be about
equal, and more than they would be without the Sun. Because the Earth has an
atmosphere, some heat is captured by the particles of air instead of going back
to space, and is reemitted in many directions, raising the planet's temperature
needed for the equilibrium. This effect of the atmosphere is called the
Now the environmental problem is that various human activities like burning
fossil fuels or clear-cutting forests change the composition of Earth's
atmosphere, most significantly raise its carbon dioxide (CO2) or
methane (CH4) levels, and this leads to an increased greenhouse
effect and global warming (being more atoms in the air: CO2 instead
To me, its most interesting part of the last sentence in the parentheses.
Can global warming really be understood as a change in quantity instead of quality?
So if we add gases to the air, will it be warmer in any case?
On a mailing list, someone who learned environmentalism in University,
wrote that it is not the case with sulfuric acid: if we add that to the air,
the Earth might be cooler. I have searched for that on the net, and I've found
the following links, for example:http://www.tgdaily.com/sustainability-f ... al-warminghttp://www.nasa.gov/topics/earth/featur ... osols.htmlhttp://www.esa.int/esaMI/Venus_Express/ ... XGG_0.html
So my question in connection with these articles: how sure it is, how accepted this thing is
among environmentalists with sulfuric acid? Or is it possible that adding
sulfuring acid to the air would increase global warming, unlike the prediction of scientists?
Well, currently I think he and they might be right if the sulfuric acid is not in gas state,
but in water droplets, because I also heard that a nuclear war would cool the Earth,
which is about solid particles in the air. But I still hold, according to my quoting myself that
any gas added to the air in gas state would probably heat the Earth. I'm not a professional
environmentalist, however, so I would like to ask some clarification about this subject...
It is a case of quality and quantity as you have presented it. The properties of the GHGs (quality) are known as are the properties of sulfur aerosols, oxygen, and nitrogen. The concentration (quantity) is then the second factor. The increase in GHGs will cause warming because that is their quality, sulfurs will cause cooling because that is their quality, and oxygen or nitrogen will do neither because that is their quality.
Adding to the atmosphere cannot be simplified to always warming, cooling, or no effect because the quantity and qualities of what is added play significant parts in the final outcome.