A Labrador named Tubby or also known as the 'world's greenest dog' died in London. He was entered into the Guinness Book of Records as the world's greenest dog in 2011 after picking up 26,000 plastic bottles.

Tubby has died at the age of 13. He use to pick up plastic bottles during his twice daily walks and crushing them in his mouth. He also carried bottled to his owner Sandra Gilmore, from Pontnewydd, Torfaen, to be recycled.

A spokesman of Guinness World Records said that, "It was a pleasure to have Tubby feature in the book. It was a unique record and we are honoured to have been able to verify his achievement in the community."

"He meant so much to us and the local community and he had friends all over the world. He didn't let it all go to his head though as he was always the keenest, greenest recycling canine around with the smallest carbon paw print ever," Gilmore added.

Torfaen council's waste and recycling manager Cynon Edwards said that, "He was a remarkable dog and did a great job sniffing out rubbish to recycle, and helping to improve the environment for everyone in Torfaen."

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- Nandini