In an article published in the journal Globalizations, senior fellow Noah Toly explores the relationship between London and the UK's decision to leave the EU.
Despite the challenges, Rio has accomplished more in the years preparing to host the Olympics than it could have without being awarded this international honor.
Networks like C40 or the Healthy Cities Network show cities have a great potential to mobilize forces across boundaries and shape international agendas.
More than any other large American city, Chicago has depended on immigrants to offset the sluggish growth of its native-born population. The decline in immigration will destabilize Chicago's population.