Eighteen organizations in the UK are urging the government to ban disposable e-cigarettes, arguing they are a waste of scarce lithium and a source of plastic pollution.
In an open letter to Environment Secretary Theresa Coffey and Health Secretary Steve Barclay, the signatories said: "These are unnecessary electronics that contain precious metals such as lithium.
"Lithium, a key material in our green transition, is just wasted in these devices."
"They're also another unnecessary single-use plastic, and this material, along with the batteries and nicotine contained in these single-use items, poses a hazard to the environment and wildlife when littered."
Signatories say they should be banned, most easily by adding them to a list of banned plastics as part of a shift away from single-use culture.
They said Defra's call for evidence on littering and problematic plastics, including traditional tobacco filters, ignored the growing threat of single-use e-cigarettes.
The letter also argues that vaping poses a health risk to young people and is particularly prevalent among those aged 11-17.
It cites research from Material Focus that found at least 1.3 million disposable e-cigarettes are thrown away every week.
Signatories included Sean Spears, executive director of the Green Coalition, Chris Tuckert, program director at the Marine Conservation Society, and Amy Slack, campaign and policy director for Surfers Against Sewage.