Around 73 countries have joined the Climate Ambition Alliance (CAA) at the COP25. The alliance is led by Chile and was launched at the Climate Action Summit, New York in 2019.

• The CAA will focus on Nationally Determined Contributions in order to achieve Net Zero by 2050.
• It will focus in resilience in infrastructure, management of water and sustainability of cities.
• The main purpose of the alliance is to upscale 2020 targets of members of UN and to achieve Net Zero Carbon Emissions by 2050.
• It will focus in resilience in infrastructure, management of water and sustainability of cities.