In Mesa, it also was ride your bike to work day.
"It's refreshing, it gets you out, and it's exercise, it keeps you healthy," said Tamara Buehlre.
Buehlre was one of the hundreds of people gathering at Mesa City Hall after their bike ride to work, all in an effort to reduce pollution.
"I love to ride my bike, I ride my bike a lot, I ride with my son and every year for this event," she said.
For the 5th year, vendors were out sharing information on how we can eliminate or reduce our carbon footprint.
"Just because we throw things away doesn't mean they go away," said Mariano Reyes with Solid Waste Management.
Recycling is one way; it's also one of Mariano Reyes' passions.
"We're just trying to minimize the amount of trash, and the trash we do generate we want to make sure we properly dispose of it," said Reyes.
He says everyone should make it a priority to recycle newspaper, plastic, and glass.
"Just those little things where you think oh I can't make a difference, any little bit helps," he said.
Once riders got to work, they were able to make a small donation and get some breakfast. All proceeds raised benefited the Child Crisis Center in Mesa.
Mesa City employees competed against different departments on who had the most workers ride their bikes to work. The winning team got bragging rights and a trophy with their department engraved on it.