Fort Bragg's City Council unanimously asked for an environmental impact report on such a ban this week, according to the Press Democrat.
In Richmond, a community meeting drew a dozen interested members of the public as the city demonstrated that plastic bags choke its infrastructure.
Each city's ban is slightly different. Fort Bragg's considering laws that would ban bags at most stores, and charge a fee for paper bags. Customers would not be charged if they brought their own bags.
Richmond is still hammering out the terms of its ban, and is asking residents what an appropriate fee for non-reusable bags would be, according to Richmond Confidential.
The plastic bag industry staunchly opposes measures that would cut into their bottom line, but as evidence mounts that the bans are beneficial, more cities are taking steps to give plastic bags the boot.
Bag manufacturers say that paper bags take up more landfill space. That may be true, but they can also be recycled, where as plastic bags generally cannot.
Meanwhile, in San Francisco, a survey shows that consumers are confused by recycling rules, and frequently throw items in the incorrect bin. An "ecofinder" tool that explains where trash should go is so confusing, hardly anyone uses it.