Dubai's Roads and Transport Authority (RTA) is set to make the taxi fleet 100% eco-friendly by 2027.
The taxis are set to consist of hybrid, electric and hydrogen-powered vehicles.
From a fleet of 11,371, 72%, comprising of 8,221 vehicles have already made the switch.
The initiative is in line with the plans to make public transport emission-free by 2050.
With the initial plan to transform 50% of the taxi fleet into eco-friendly, around 420,000 tons of carbon emissions was reduced annually.
His Excellency Mattar Al Tayer, Director-General, Chairman of the Board of Executive Directors of the Roads and Transport Authority said, "The results of experiments on eco-friendly vehicles, which RTA started trialling in 2008, confirmed the environmental benefits of reducing carbon emissions, fuel consumption, and maintenance costs, as well as decreasing noise levels. Hybrid vehicles also have a longer lifespan compared to regular vehicles and cost less in the long run. They are characterised by lower purchase prices, maintenance fees, fuel expenses, insurance premiums, and other associated costs that potentially could be as low as 50% of regular vehicles."