How well do you really know your country? Take our quiz. Unaffordable country: where can you afford to buy a house? Carbon emissions: past, present and future – interactive. Gay rights in the US, state by state. Datablog + UK riots 2011. The England 'riot commute' mapped: an animation. Twitter traffic during the riots. Arab spring: an interactive timeline of Middle East protests. Data journalism and data visualization from the Datablog.