There's no shortage of fiscal challenges for mayors, selectmen and city councilors across Massachusetts. In particular, Massachusetts' three-hundred-plus municipalities are dealing with pension obligations taking up nearly 20 percent of budgets.

Here's a shocking statistic: if current trends continue, more than half of every dollar in tax revenue could go to pensions.

Anthony Flint, a fellow at the Lincoln Institute of Land Policy, joined Callie Crossley to talk about what can be done.