From Nairobi to New York City, this London-born organization aims to strengthen communities, beautify cities, and improve urban environments worldwide by developing beautiful, utilitarian urban green spaces. Trees not only bring nature to metropolitan areas, they help clean the air by absorbing pollutants, provide oxygen, save water, and grow food (amongst plenty of other benefits). Support Trees for Cities by participating in a fundraising event, or get out there and join in on a planting day.
Interested in volunteering? Register here.
Photo: Trees for Cities