Biased about what?

There really isn't any Earth observation you could make that can't be grossly compared with other types of observations. There is literally no value in taking "biased" observations; where's the market for temperature stations that are _wrong_? I promise, energy and commodities traders don't want that data!

Companies spend a lot of money to remove and repair the idiosyncratic bias that already exists in this data.

Private companies don’t care about having accurate data?

Does the government have private access to forming unbiased information?