Old Rocks
Diamond Member
- Thread starter
- #21
Well, Mr. Westwall and the rest of you deniers, when is that cooling you have been predicting going to start? We need it rather soon, or a lot of our farmers are going out of business in the West.
based on the title of the video its happened before,, so how is this a climate change issue this time??
Yes, the climate changed, in a minor way, and ended the Anasazi culture in the Southwest. But the underlying conditions of the atmosphere did not change. Right now, we have changed those conditions. From 280 ppm of CO2 and about 700 ppb of CH4 to 410 ppm of CO2 and 1850 ppb of CH4. So this is very likely to be a more permanent change than the mega drought that ended the Anasazi culture.
CO2 is so tiny in the atmosphere that it really doesn't matter at all as a greenhouse gas. WATER VAPOR is far far more prevalent....
How wonderfully ignorant you are. Yes, water vapor is a very strong GHG. We have known that since 1859. However, it's residence time in the atmosphere is less than 10 days, whereas CO2 has a residence time of centuries. And if you really think that such a small amount of CO2 cannot be effective, compare on one gram of potassium cyanide to you body weight, so it has to be perfectly safe to ingest that one gram, right?