They understand science fine. That's why they publicly declared Hansen's findings to be a crock of shit. Hansen isn't NASA.
You're claiming that ground level temperature sensors have an error range of 0.8 degrees Celsius? Sorry, no. Actually human contributions are on target to double CO2 concentrations. Estimates are that we're producing about 27 billion tons of CO2 per year. Picture how little CO2 weighs, and how much space one ton would take up. There is no climate model or climate textbook that does not discuss the role water vapor plays in the Greenhouse Effect. It is the strongest Greenhouse gas,contributing 36% - 66% to the overall effect for vapor alone, 66% to 85% when you include clouds. It is however, not considered as a climate "forcing" because the amount of H2O in the air basically varies as a function of temperature. If you artificially increase the level of H2O in the air, it rains out immediately I think I've addressed every single objection so far, from quoting 95 year old men with dementia, to quoting astrophysicists about climate, I've addressed each one point by point.
I've read this passage just the other day. Word for word. Exactly the same. You've copy/pasted it. You're a fraud, Dave.
No, he's a joke. NASA confirmed it by declaring his findings a load of crap. You agree that NASA said he was full of it, right?
So you admit that you're a fraud, and that in order to have responded that quickly, you have a whole list of stock answers ready to copy/paste? Face it Dave, you've destroyed your credibility yet again. Useful idiot indeed.
A "downtrend?" In changes in temperature? You understand that it's not a graph of absolute temperature, but how high above average each year was. A trend from "hotter than hell" to "hotter than average" is not "cooling."