Yes, but they didn't get those probes to Mars without doing a number of midcourse corrections (heck, you can't even get to the Moon without doing midcourse corr

Yes, but they didn't get those probes to Mars without doing a number of midcourse corrections (heck, you can't even get to the Moon without doing midcourse corrections), so it's not like you can just enter a model and run with it. If you try to do that then you're going to end up way off target. Which brings up an important point about all those climate models. Anybody who actually uses models to solve real-world problems will tell you that you can generally only trust those models so far. For anything long-term (where "long-term" can be remarkably short), you usually have to make the equivalent of midcourse corrections based on actual events. And for the longest time, at least, the climate change folks seemed far too reluctant to do that. And this may still be a problem, because I'm seeing reports now that "our climate models have been remarkably accurate", while others point out that they haven't necessarily been particularly accurate at all. To add insult to injury, there appear to have been several instances now where, when the data and the models diverged, instead of correcting the models they adjusted the data instead, justifying this by declaring that it had a "cool bias" or whatever.