So far, the only "evidence" you've presented that I can recall is a dispute about the extent of snow pack melt in one portion of the California mountains in one year.
There was no dispute over extent of the snow pack melt. The problem was that the data was being suppressed because it was inconvenient to leftist ideology.
As farmer points out, much of the data is digital from scientific instruments and doesn't involve a human scientist at all in the gathering.
That doesn't change the reality that suppressing inconvenient data leads to bias that makes accurate conclusions impossible.
You're making allegations with no proof for a widespread pattern and ignoring the wideslpread evidence from many different viewpoints with no interaction between tem which show it's real.
We know that at least one scientific journal suppresses data that is inconvenient to the left.
We also know that this suppression is seen as acceptable and has not been corrected.
You seem to have a lpattern of takng one example of something you think proves your point and generalizing it with no evidence as discrediting the whole enterprise.
That's because it does prove my point, and does discredit the entire enterprise.