Million Tree Pledge | 1,777 followers on LinkedIn. We are a group whose members are committed to planting over 1 million trees each in response to the Climate Emergency | “The most important question each of us must ask is, ‘Are we being good ancestors?’” - Jonas Salk (creator of the polio vaccine) The Million Tree Pledge is a collaborative initiative bringing together businesses and individuals to make a bold commitment to plant 1 million trees each in the coming years. Led by a group of established and independent small businesses in the UK, the Pledge has two parts: 1.