For years it was drilled into parents that disposable nappies were environmentally unsound.
They could show their green credentials, they were told, by jumping back a generation or two and using the washable towelling version.
Those who didn't were made to feel they were putting convenience before the future of the planet.
But after a three-year campaign that has cost taxpayers at least £30million, it has been decided that the two types have the same impact on the environment.
As a result, ministers at the Department for the Environment, Food and Rural Affairs have quietly dropped the lavishly-financed Real Nappy Campaign.
The decision follows a four-year research project which found that the impact of burying disposable nappies in landfill sites was matched by the energy consumed and greenhouse gases generated by washing reusables or transporting them to laundries.
So, government made a decision without proper study....hmmm, doesn't sound familiar to anyone does it?