You are confusing science with pseudoscience. Global warming "science" worked backward from a conclusion to evidence to back that conclusion. Data was manipulated, hidden, and misinterpreted. Again, if you would just do a little research you will see how the historical record has been changed to support their position. They admit to it and tell you why it was necessary.Yes, they tell me a lot. They tell me that science likes to be accurate and precise in its language. They are indeed "pretty sure" and "fairly confident," based on the data they've compiled and the analysis of said data.
That's precisely how science works. Just because they can't say with 100% certainty doesn't negate the overwhelming likelihood that they are correct.