Method and system to promote actions such as environmental and charitable actions

The present method and system allows promoting a first action by a first entity, such as a transactional action. The transactional action occurs between the first entity and a second entity, which both can be for example in the form of an individual, a group of person, a company or a charitable society, whereby the first entity for example buys, borrows or acquires a products or service from the entity. In response to this transaction, the second entity agrees to perform a second action, which can take many forms such as an environmental action, a third action towards a third entity, etc. This second action is personalized by associating it to any party including at least one of the first and second entities and a third party. The second action is, for example, in the form of the offsetting of the pollution created by the first party following and related to the transactional action with the second party. The present method and system provides an incentive for the first entity to perform the transactional action.