The Greater London Authority (GLA) is a strategic regional authority with powers over transport, policing, economic development, and fire and emergency planning in London. It was established in 2000 and is led by the Mayor of London, alongside the London Assembly. The GLA works to improve the quality of life for Londoners by addressing key issues such as housing, environment, and public health.

The GLA is committed to sustainability and has implemented various initiatives to reduce the city's carbon footprint and promote green living. The authority has set ambitious targets to make London a zero-carbon city by 2050. It actively supports renewable energy projects and encourages the use of public transport, cycling, and walking to reduce emissions. The GLA also focuses on improving air quality and has introduced measures like the Ultra Low Emission Zone (ULEZ) to tackle pollution.

In addition to environmental efforts, the GLA promotes social sustainability by investing in affordable housing and community development projects. It works to ensure that all Londoners have access to essential services and opportunities for economic growth. The authority collaborates with various stakeholders, including businesses, local councils, and community groups, to achieve its sustainability goals.

While the GLA has made significant strides in sustainability, it continues to face challenges such as balancing economic growth with environmental protection. The authority remains dedicated to finding innovative solutions and engaging with the public to create a more sustainable and resilient London.