Is carbon dioxide called a "greenhouse gas" because it's pumped into greenhouses to accelerate plant growth?

Models are not needed to know that CO2 is a greenhouse gas and model forecasts are irrelevant regarding the theory of anthropogenic global warming. However, models used to test historic and current data were important in identifying CO2 as the primary cause of the recent warming trend in mean global temperature. Although mean global temperatures during the “pause” are statistically significantly warmer than at any time in the historic record, climate model forecasts generally – although not universally as Deniers claim – underestimated the decrease in trend (rate) of warming for two reasons: (1) the “pause” is too short of a time period to separate the (lower frequency) warming trend from (higher frequency) signals from internal variability such as the PDO and El Nino, and (2) climate models are designed to forecast conditions on time scales ranging from several decades to centuries and longer.

The scientific and mathematical justification for this rests in the fact that over longer time periods, variability in cyclical factors such as the PDO and ENSO balance out so that events like the “pause” do not mask the underlying long-term temperature trend.

Knowing things isn't really what science is about. Science is about looking at evidence and observation and trying to find the best explanations. Computer models aren't necessary for determining if CO2 is a greenhouse gas.

They are important if you need to exaggerate the effects of CO2 because the real world shows that increased CO2 hasn't done much of anything in the last nearly 20 years (can we finally round up?). Could they underestimate it? Of course.

Could they overestimate it? Of course.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.