New York City Mayor Michael Bloomberg now wants to abolish Styrofoam cups and containers in city stores and eateries.
He says Styrofoam is an environmental nightmare because it doesn't break down in landfills.
On Wednesday, a city council member proposed a bill to prohibit stores and restaurants from using Styrofoam.
Meanwhile, a state appeals court is considering whether Bloomberg's law banning oversized sodas and other large sugary drinks at city restaurants can take effect.
A state court barred the city from enacting the ban three months ago.
The court found there were too many loopholes that would undermine the health benefits.