Science has gotten a lot wrong, I don't think you will find any scientist that will disagree about that statement. However its nature is that it can only go with what the evidence presents. Before the time of the Greeks, people thought the earth was flat; the evidence seemed to suggest a zero degree curvature. After all, we couldn't see the Earth curve, right?
Eratosthenes changed that by measuring the solar angle at a specific time of day at different points on the Earth, and working out that we did indeed have a very small, if not zero curvature. Combine that with observations that the sail would be the last part of the ship to go past the horizon, and there was considerable evidence to support the curved Earth.There could have been an even better model that suggested the Earth was actually flat, but the evidence was so overwhelming, it was not even worth considering, unless a better model is developed.
The geocentric model of our solar system also was the best model that we had at the time. Say what you will about how silly it seemed, it was what the evidence supported; circular models just did not fit the evidence as well as Ptolmey's celestial sphere model. It took Tycho Brahe's measurements and Kepler's elliptical model to finally find one that is better. Of course, he could have been wrong too, and in some respects he was, but it was the best model we had.
Now the climateological model is one that includes the warming of the Earth. Specifically, the evidence points to the Earth warming due to human released carbon gases. Of course, just like everything else, there is a small chance that the Earth is not warming, or that it is not because of humanity's influence. Nothing is certain in science, nor ever could be. However, unless a better model is developed that doesn't include human caused warming, the possibility is so remote, it is barely worth considering at this point.
I'll also use this post to plug Asimov's
The Relativity of Wrong, which is my favorite non fiction essay by him, and gives the point I did, just more beautifully put.
http://chem.tufts.edu/answersinscience/relativityofwrong.htm
...when people thought the earth was flat, they were wrong. When people thought the earth was spherical, they were wrong. But if you think that thinking the earth is spherical is just as wrong as thinking the earth is flat, then your view is wronger than both of them put together.
The basic trouble, you see, is that people think that "right" and "wrong" are absolute; that everything that isn't perfectly and completely right is totally and equally wrong.
...living in a mental world of absolute rights and wrongs, [one] may be imagining that because all theories are wrong, the earth may be thought spherical now, but cubical next century, and a hollow icosahedron the next, and a doughnut shape the one after.
What actually happens is that once scientists get hold of a good concept they gradually refine and extend it with greater and greater subtlety as their instruments of measurement improve. Theories are not so much wrong as incomplete.
This can be pointed out in many cases other than just the shape of the earth. Even when a new theory seems to represent a revolution, it usually arises out of small refinements. If something more than a small refinement were needed, then the old theory would never have endured.