Ab Fab star Joanna Lumley wants to bring back wartime rationing to save the planet.
The actress, 75, called on the government to introduce radical laws to tackle climate change.
She also hit out at people “hopping on a plane to Magaluf for the weekend”.
Joanna favours a points system where people could choose how they spend their “credits”.
The campaigner said: “It’s up to you how to spend them, whether it’s buying a bottle of whisky or flying in an aeroplane. We’ve got to do it for the sake of this beautiful Earth.
“These are tough times and I think there’s got to be legislation.
“That was how the war was. Stuff was rationed and, at some stage, we might even have to go back to some kind of system of rationing.”
Activist and author Joanna believes small changes can make a big difference.
But she blasted those who jet off on weekends away, adding: “Perhaps people have got to think a bit harder.
“Maybe more of our holidays should be at home or taking trains, and not hopping on a plane to Magaluf for the weekend.
“Every plastic bottle you don’t buy, every piece of litter you pick up, every piece of meat you don’t eat, every small thing counts.”
However she might struggle to convince those with less time and money to take the longer, more expensive route.
Flying to Magaluf from Manchester takes around 6 hours in total, including transfers, and costs as little as £22 each way.
Taking four trains,a coach and ferry takes around 42 hours and costs £249 one way, according to train travel website Rome2Rio.com.
Joanna played the money-squandering alcoholic and queen of excess, Patsy Stone, in BBC comedy Absolutely Fabulous.
But the glamorous star detests waste and insists she could not be further from her iconic character.
She said: “There are lots of people in the western world who are jolly poor, but largely it’s the western world that stuffs its face and chucks stuff away and doesn’t care.”
Around 3.6million tonnes of food is wasted each year by farmers, manufacturers, wholesalers and retailers before it has even reached consumers.
And over 2 million tonnes of the food that goes to waste is still edible, say fareshare.org.uk.
Former Environment Secretary Ed Miliband raised the idea of carbon credits back in 2006.
But critics worry it could stifle economic growth.
Source: Celebrities - dailystar.co.uk