Secretive venture capitalists spent six years buying up farmland in Solano County with the dream of constructing an eco-friendly hamlet of the future, but not everyone is convinced, writes Joe Sommerlad
Tech titans vision for a new city in Northern California raises concerns france24.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from france24.com Daily Mail and Mail on Sunday newspapers.