“This is by far the biggest crowd we've ever gotten together,” said Cherise Udell, Utah Moms for Clean Air.
Environmentalists, community leaders, even a former news anchor are demanding change.
“This is an election year, when you go to the polls in November think about who you are voting for and make sure you do vote at the polls and let's decide who we want in our election offices that care about our air, our water, our environment,” said Dick Nourse, former news anchor.
But many hope the change begins this legislative session with action across the board including mass transit reform.
“We want to expand mass transit, better funding, expanded service and affordable fares that encourage increase use,” said Amanda Batty with Athletes For Clean Air.
They also called for a 10-year moratorium on all new highway contraction and a halt on all expansions and new fossil generated power plants, including oil refineries and Kennecott.
“We need a moratorium,” said Udell. “Just like we don't write checks on a bank account that are over drawn, you don’t issue permits in a state that is out of compliance with federal air standards.”
Protesters were encouraged to take public transportation to the rally, bike or carpool.