There are plenty of hotels scattered around the world that are anxious to shout their green credentials. Alas, for the business traveller there are painfully few to choose from.

When faced with business in Rotterdam or Beijing, green choices are extremely limited. The travel press bombards us with information on eco-friendly hotels and spas, but the chances of finding one in a business centre, rather than on the edge of a rain forest or in some exotic, palm-fringed resort, are almost nil.