Also, when tax-free pension contributions go up and taxable payments to future retirees go down... then taxes collected also goes down...
As for a change in tax revenue, the same is true if you contribute more to your 401k and/or get back less because your investments didn't do good. Also, if you lay state employees off, your state income tax revenues go down.
It could be funded by increasing contributions gradually until it reaches the correct funding level (either from cuts in other areas or taxes), by cutting the future amounts they distribute from the pensions, by raising the retirement rate of current workers which would give them time to make up the deficit, or a combination of these.
The problem is, these options all kind of stink politically, but they won't bankrupt the state by themselves.
In that case stupid question: if CalPERS owes much more than it can afford to pay, where is the rest coming from? The LA Times article, in multiple places, talks about how much the shortage will cost the "taxpayers" (see quote below for example), how is this not related to the CA budget which is, well, funded by taxpayers?
> "This year, state employee pensions will cost taxpayers $5.4 billion, according to the Department of Finance. That’s more than the state will spend on environmental protection, fighting wildfires and the emergency response to the drought combined."
That makes it seem like it's related to the budget...