Calif. town considers climate change warning labels

"Global warming alert," the sign for gas pumps reads.

If such stickers are approved, Berkeley, Calif. may become the first city in the U.S. to mandate they are placed on gas pumps, notifying consumers that the state has found that carbon dioxide emissions exacerbate global warming.

The Community Environmental Advisory Commissions last week approved the concept, the Los Angeles Times reported. They would be placed on gas pump handles.

Berkeley City Council will vote on the warning stickers in July.

"It's a perfect opportunity to remind people that there are greenhouse gas impacts and there are alternatives," Berkeley Councilman Kriss Worthington said.