Business is one of the nine major groups recognised by Agenda 21 in 1992, and is therefore a key actor in global environmental politics. There are a number of reasons why business is an interesting actor to study: business proposes solutions, tries to influence decision-making, plays a key role for policy implementation, finances part of global environmental actions, etc. As a result, one does not need to be pro-business and believe in global trade liberalisation to study industries. It can be as relevant to do so when you fight against green washing: you also need to know your enemy. In any case, business is part of the game.