What type of events does C40 organize to foster collaboration among cities?

C40 is focused on addressing climate change and driving urban action for a sustainable future, which involves facilitating collaboration among cities. Workshops and networking events are crucial because they create opportunities for city officials, experts, and stakeholders to share knowledge, discuss challenges, and explore innovative solutions. These gatherings help foster a collaborative environment where cities can learn from each other's experiences and best practices.

In contrast, the other options do not primarily serve the purpose of promoting direct collaboration among city leaders or fostering the exchange of strategies. While concerts and exhibitions, technical fairs and trade shows, and documentary screenings and public discussions may provide valuable information or raise awareness, they typically do not facilitate the same level of interactive and focused collaboration that workshops and networking events encourage.