Balloons released in the sky don’t go to heaven. They often end up in oceans and waterways, where they’re 32 times more likely to kill seabirds than other types of plastic debris. Despite this, humans like to release them en masse, be it to celebrate a loved one’s life or a wedding, or to reveal the gender of a baby.

The practice is on the verge of becoming illegal in Florida, where the legislature has joined a growing number of states to ban the intentional release of balloons outdoors. The Florida ban is expected to be signed by Gov. Ron DeSantis and would take effect July 1.

Florida is at the forefront of a dizzying and contentious array of statewide bans, outlawing lab grown meat, certain books from school libraries and classrooms, and most abortions after six weeks. But the balloon ban is rare for garnering widespread bipartisan support. It was championed by environmentalists and sponsored by two Republican lawmakers from the Tampa Bay area, Linda Chaney, a state representative and Nick DiCeglie, a state senator.

“Balloons contribute to the increase in microplastic pollution which is harmful to every living thing including humans, polluting our air and drinking water,” Ms. Chaney wrote in an email.

“My hope is that this bill changes the culture, making people more aware of litter in general, including balloons,” she said.

Ms. Chaney said she first heard about the perils of balloon debris in 2020. Aquatic animals often mistake balloons for jellyfish and feel full after eating them, essentially starving from the inside out. Ribbons affixed to balloons entangle turtles and manatees. Balloons also pose a threat to land animals. In her research, Ms. Chaney learned about a pregnant cow that died after ingesting a balloon while grazing. The unborn calf died too.