Vancouver has been ranked the greenest city in the world due to its recycling protocol. BusinessWaste.co.uk, a waste management company in the United Kingdom, ranked the world's greenest cities according to their recycling habits. Cities with the best protocol made the top 15 list, while those who don’t make the grade were ranked in the bottom five.

Vancouver was awarded the top honour of the "greenest city" in the world. The city was described as "Canada’s shining jewel when it comes to recycling" and praised for increasing its recycling rate from 40 per cent to over 60 per cent in just over a decade.

On the other end of the spectrum, Mexico City was ranked the world's worst city for recycling. Report authors write: "The city closed its largest landfill site, where over 70 million tonnes of waste are already buried and causing environmental problems, almost a decade ago, leading to illegal dumping grounds forming and streets piled high with waste."

The Top 15 greenest cities in the world

•Vancouver

• Singapore City

• Copenhagen

• Helsinki

• Curitiba

• Delhi

• Los Angeles

• Leeds

• Vienna

• Stockholm

• Seattle

• Songdo

• Kamikatsu

• Ekilstuna

• San Francisco