A prostitute poses at the bar of a brothel in Berlin in 2006. Stung by the economic crisis, a brothel in Berlin has leapt on the "green" bandwagon and is offering discounts to clients who can prove they arrived by public transport or bicycle -- with some success. (AFP/File/John Macdougall)
A Ukrainian prostitute walks towards a room in a brothel in an appartment in Berlin in 2007. Stung by the economic crisis, a brothel in Berlin has leapt on the "green" bandwagon and is offering discounts to clients who can prove they arrived by public transport or bicycle -- with some success. (AFP/DDP/File/Axel Schmidt)