This is the best summary I could come up with:

The parliamentary budget officer's analysis of federal carbon pricing is reportedly the subject of a "fight" with the Liberal government that includes allegations of "secret data" being withheld from the public.

On that score, the PBO estimated that most households did receive more from the rebate than they paid in additional costs — confirming one of the government's central arguments for the policy.

For one thing, the PBO didn't attempt to analyze any benefits that might result from lower greenhouse gas emissions (some economists and government departments use a measure known as the "social cost of carbon").

"The PBO compares costs relative to a world in which Canada simply ignores its emissions — and faces no consequences," experts with the Canadian Climate Institute wrote last year.

That led the Conservatives to allege that the government is hiding a "secret carbon tax report" and that the PBO is under some kind of "gag" order.

Jasraj Singh Hallan, the Conservative finance critic, said the analysis, once released, would "lambaste and completely put to shame the claims on the carbon tax scam."

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