The Nordics and California are both front-runners when it comes to sustainable cities. But to reach the ambitious goals for decarbonizing cities, share of best-practices, innovative approaches and collaboration is needed. In order to kick-start new collaboration between the Nordics and the US, the Nordic Missions in Silicon Valley will organize three virtual deep dive sessions to decarbonize cities, focused on Decarbonizing Buildings, Decarbonizing Transportation and Decarbonizing cities with data. The sessions are sponsored by the Nordic Council of Ministers.