B
Brent P
Guest
In article <oonoqv0fai5j5m1f2eh1jsmlc0ccdb0jkk@4ax.com>, Matt Osborn wrote:
> What all the computer models in the world miss is the effects of cloud
> cover. It isn't certain if the heat retained because of clouds
> offsets the heat reflected because of clouds.
Computer models have been misused in this topic. The basic problem
with them is that they are pre-programed with the assumption that
the corrolation seen in some data is causation. Right then and there
what ever the computer model spits out is but a *PREDICTION*.
There are two ways to test these predictions. One, see if they
can predict the future. Run them, then wait and see if the future
matches. Two, run them given the data to some past date. See if they
predict what occured after that date.
To the best of my knowledge, the computer climate models continue
to fail these real world tests. Therefore, they are not something
to base policy on.
Trouble is, too many people think that just because it came out of a
computer that makes it accurate and correct.
> What all the computer models in the world miss is the effects of cloud
> cover. It isn't certain if the heat retained because of clouds
> offsets the heat reflected because of clouds.
Computer models have been misused in this topic. The basic problem
with them is that they are pre-programed with the assumption that
the corrolation seen in some data is causation. Right then and there
what ever the computer model spits out is but a *PREDICTION*.
There are two ways to test these predictions. One, see if they
can predict the future. Run them, then wait and see if the future
matches. Two, run them given the data to some past date. See if they
predict what occured after that date.
To the best of my knowledge, the computer climate models continue
to fail these real world tests. Therefore, they are not something
to base policy on.
Trouble is, too many people think that just because it came out of a
computer that makes it accurate and correct.