The Mayor has set ambitious aims for London to be a zero carbon city by 2050. Read about the work he is doing to achieve this. 1.5C Compatible Plan An analysis of the different routes to becoming a zero carbon city. Business Climate Leaders The Mayor of London is working with businesses to help step up the fight against climate change. Climate Action Week 1-8 July 2019 will be London's first Climate Action Week, bringing together London's climate leaders and organisations. Divestment The Mayor is taking action to divest London’s pension funds from fossil fuels and is working with others to join him. Related content Environment Strategy The Mayor's plans to make London greener, cleaner and ready for the future. Energy for Londoners The Mayor's programme to make London's energy cleaner and more affordable. Cleaner Heat Cashback With Cleaner Heat Cashback SMEs are now eligible for up to 40% cashback on energy efficient heating improvements. Environment newsletter Sign up now to receive updates on environmental policy, projects, events and opportunities.