There is nothing unreasonable about releasing the data to allow it to be better understood. Actually, it would seem hard to make a solid case against it.
I would add that, not only should the data made public, where, when and how the data were collected should be investigated. The climate researchers have a tendency to place sensors in strategic locations that help to justify their predetermined conclusions.
It seems to me that the EPA is making a concerted effort to withhold evidence that they know might not be in favor of trying to regulate CO2 which is not a pollutant & seems a waste of effort trying to prove that it is. Of course, ruling a certain way might derail the gravy train for some.
There is no data. They used the UN Climate change report and ridiculous computer models to justify the regulations.
They need to find the report by the EPA scientist that debunked the endangerment finding. He was forced to retire.