London Mayor Sir Sadiq Khan has prioritized climate action throughout his tenure, focusing on reducing the city’s carbon emissions and improving air quality. Now in his third term and marking a decade in office, Khan’s initiatives continue to center on environmental challenges facing the capital.

Among his most notable policies is the Ultra Low Emission Zone (Ulez), which has contributed to halving roadside nitrogen dioxide levels since its inception in 2016. The expansion of Ulez and the introduction of 20mph speed limits in certain areas are part of efforts to decrease pollution, particularly benefiting outer London where emissions have dropped by more than 20 percent. According to Khan, London’s air quality is improving faster than the national average in England.

In addition to air quality measures, work has commenced on pedestrianising Oxford Street, one of London’s busiest shopping districts. This initiative aims to reduce vehicle traffic and promote cleaner, safer public spaces.

This year, Khan unveiled a 10-year strategy focused on restoring and cleaning London’s waterways, addressing pollution and enhancing green infrastructure. The move comes in the wake of what was recorded as the country’s hottest summer, prompting further attention to urban climate resilience.

The “Heat Ready London Technical Report,” commissioned by Khan’s office, projects that climate-related damages could cost the city up to £36 billion annually by the 2050s if current trends continue. In response, the mayor plans to expand green and cool spaces across London to mitigate heat risks and improve overall environmental health.

Khan has described air pollution as the “gravest environmental threat to human health” in London, emphasizing its disproportionate impact on low-income and minority ethnic communities. His policies reflect an ongoing commitment to addressing these inequalities while advancing broader climate goals for the city.