Pet owners are looking to turn their dogs vegan after research shows medium-sized dogs have a high carbon footprint.

The New Scientist shows the carbon footprint of a sports utility vehicle driven for 10,000 kilometres for a year is about less than half of a medium-sized dog like a labrador or a Golden Retriever.

Another study found dogs and cats in America eat about a third of the meat that humans do.

But Rita Panahi says, despite the research, environmentalists would never give up their pet dogs.

“They’re massive hypocrites.

“If you’re a greenie and you’re a dog lover you’re in trouble.

“You can’t have your puppy and save the world.”

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