London mayor Boris Johnson is visiting Paris to discuss with his counterparts from other countries how best to tackle climate change and cut carbon emissions, as the UN talks continue.
Johnson will meet senior politicians, including French president Francois Hollande and Paris mayor Anne Hidalgo, and over 100 city leaders from around the world who are gathered for the 'C40' summit meeting of a confederation of major world cities working together to tackle global warming.
The visit comes as negotiators from 195 countries at the UN climate summit attempt to hammer out a comprehensive deal to curb greenhouse gas emissions and inhibit the impact of climate change.
Johnson claims that London leads the way in combating climate change, with a 14 per cent reduction in carbon emissions in the capital since 2008, despite an increase in the city's population of one million.
The London mayor has been criticised for not doing enough to tackle the city's air pollution problem, but he will be discussing with other leaders his success in transforming the capital's bus network to make it greener and how working with other cities can drive down the cost of new, cleaner vehicles.
Johnson will also discuss plans to ensure London's status as the clean tech capital of the world, boost research and innovation and deliver the world's first ultra-low emissions zone in a bid to improve London's air quality and reduce carbon emissions.
Johnson said: "It's vitally important that world cities unite and work together to mitigate climate change. London's thriving green economy is worth over £30 billion and we are a leading centre of innovation, with the entrepreneurs, technical ability, academia and engineering to drive the transition to a low-carbon economy.
"We've proved in the capital that unprecedented population increases are no barrier to reducing carbon emissions and I look forward to discussions with my fellow mayors that help deliver a positive environmental impact."
Whilst in Paris, Johnson will visit a thermal power station owned by Engie which uses water from the River Seine to cool five million square metres of public buildings, including the National Assembly, lowering their carbon emissions by reducing the need for individual air-conditioning.
The London mayor is keen to introduce a similar scheme in Greenwich, which will use the Thames to produce hot water from heat pumps to warm local homes, with the aim of improving air quality by lowering emissions from boilers and reducing energy bills for residents by around 10 per cent.
Johnson will also join the British Ambassador to France to lay a rose at the Bataclan concert hall, where gunmen stormed the building midway through a rock concert on November 13, killing 89 people, including Briton Nick Alexander.