Quote (Ghot @ Oct 19 2018 09:36pm)
Even IF that were true, it still woouldn't affect the climate one iota.
Here's all the human made greenhouse gases... [......]
Now here's all the nature made green house gases... [.........................................................................................................................................................................................................................]
Yes, this representation is inaccurate. I would need a line of dots, say 100 miles long to represent nature's contribution.
You're wrong, actually. We know all of this stuff.
The atmosphere of Earth is composed of nitrogen (about 78%), oxygen (about 21%), argon (about 0.9%) with carbon dioxide and other gases in trace amounts. Water vapor accounts for roughly 0.25% of the atmosphere by mass.
Different molecules absorb different wavelengths of radiation. We know exactly what wavelength every molecule absorbs. For example, O2 and O3 absorb almost all wavelengths shorter than 300 nanometers. Water (H2O) absorbs many wavelengths above 700 nm. When a molecule absorbs a photon, it increases the energy of the molecule. This heats the atmosphere.
Even though greenhouse gasses make up less than 1% of our atmosphere, they account for about 64 degrees Fahrenheit (18 °C) of our surface temperature. The surface would be -18 degrees Celsius or 0 degrees Fahrenheit without that tiny fraction of a percent of greenhouse gasses.
So we know exactly what wavelengths every molecule absorbs, we know the exact radiative properties of every molecule, we know exactly how many of them are in the atmosphere measured in parts per million, and we know exactly how many additional PPM have been put in our atmosphere since the industrial revolution by man. And we've nearly doubled the PPM of greenhouse gasses in the atmosphere since we started in the 19th Century.
This post was edited by inkanddagger on Oct 20 2018 12:36am