Ling volunteers regularly for two charities - Crisis Skylight London and the Environmental Justice Foundation (EJF). Crisis Skylight London is an award winning training and employment centre for homeless people in East London. It was set up by the homeless charity Crisis. It offers practical workshops with formal learning opportunities that lead to qualifications and finding work. EJF is a London based charity that supports people affected by environmental abuses and campaigns for change in Brazil, Vietnam, Sierra Leone and Uzbekistan.